Topic Thesaurus
Roget's Thesaurus

Form

General Form

Form

Nouns
  • form, figure, shape
  • conformation, configuration
  • make, formation, frame, construction, cut, set, build, trim, cut of one's jib
  • stamp, type, cast, mold
  • fashion
  • contour etc. (outline) Outline
  • structure etc. [Structure.] Texture
  • plasmature. feature, lineament, turn
  • phase etc. (aspect) Appearance
  • posture, attitude, pose. [Science of form] morphism. [Similarity of form] isomorphism. forming etc. v.
  • formation, figuration, efformation
  • sculpture
  • plasmation.
Verbs
  • form, shape, figure, fashion, efform, carve, cut, chisel, hew, cast
  • rough hew, rough cast
  • sketch
  • block out, hammer out
  • trim
  • lick into shape, put into shape
  • model, knead, work up into, set, mold, sculpture
  • cast, stamp
  • build etc. (construct) Production.
Adjectives
  • formed etc. v.. [Receiving form] plastic, fictile
  • formative
  • fluid. [Giving form] plasmic. [Similar in form] isomorphous. [taking several forms] pleomorphic
  • protean
  • changeable, c. Changeableness.

Amorphism (Absence of form)

Nouns
Verbs
Adjectives
  • shapeless, amorphous, formless
  • unformed, unhewn, unfashioned, unshaped, unshapen
  • rough, rude, Gothic, barbarous, rugged.

Symmetry (Regularity of form)

Nouns
  • symmetry, shapeliness, finish
  • beauty etc. Beauty
  • proportion, eurythmy, uniformity, parallelism
  • bilateral symmetry, trilateral symmetry, multilateral symmetry
  • centrality etc. Centrality. arborescence, branching, ramification
  • arbor vitae.
Adjectives
  • symmetrical, shapely, well set, finished
  • beautiful etc. Beauty
  • classic, chaste, severe. regular, uniform, balanced
  • equal etc. [Sameness of quantity or degree.] Equality
  • parallel, coextensive. arborescent, arboriform
  • dendriform, dendroid
  • branching
  • ramous, ramose
  • filiciform, filicoid
  • subarborescent
  • papilionaceous. fuji-shaped

Distortion (Irregularity of form)

Nouns
  • distortion, detortion, contortion
  • twist, crookedness etc. (obliquity) Obliquity
  • grimace
  • deformity
  • malformation, malconformation
  • harelip
  • monstrosity, misproportion, want of symmetry, anamorphosis
  • ugliness etc. Ugliness
  • talipes
  • teratology. asymmetry
  • irregularity.
Verbs
  • distort, contort, twist, warp, wrest, writhe, make faces, deform, misshape.
Adjectives
  • distorted etc. v.
  • out of shape, irregular, asymmetric, unsymmetric, awry, wry, askew, crooked
  • not true, not straight
  • on one side, crump, deformed
  • harelipped
  • misshapen, misbegotten
  • misproportioned, ill proportioned
  • ill-made
  • grotesque, monstrous, crooked as a ram's horn
  • camel backed, hump backed, hunch backed, bunch backed, crook backed
  • bandy
  • bandy legged, bow legged
  • bow kneed, knock kneed
  • splay footed, club footed
  • round shouldered
  • snub nosed
  • curtailed of one's fair proportions
  • stumpy etc. (short) Shortness
  • gaunt etc. (thin) Narrowness. Thinness
  • bloated etc. Expansion
  • scalene
  • simous
  • taliped, talipedic.
Adverbs
  • all manner of ways.
Phrases
  • crooked as a Virginia fence [U.S.].

Special Form

Angularity

Nouns
  • angularity, angularness
  • aduncity
  • angle, cusp, bend
  • fold etc. Fold
  • notch etc. Notch
  • fork, bifurcation. elbow, knee, knuckle, ankle, groin, crotch, crutch, crane, fluke, scythe, sickle, zigzag, kimbo, akimbo. corner, nook, recess, niche, oriel [Arch.], coign. right angle etc. (perpendicular) Existence6-parallelism">Parallelism.1, Verticality
  • obliquity etc. Obliquity
  • angle of [Connecting medium.] Connection degrees, miter
  • acute angle, obtuse angle, salient angle, reentering angle, spherical angle. angular measurement, angular elevation, angular distance, angular velocity
  • trigonometry, goniometry
  • altimetry
  • clinometer, graphometer, goniometer
  • theodolite
  • sextant, quadrant
  • dichotomy. triangle, trigon, wedge
  • rectangle, square, lozenge, diamond
  • rhomb, rhombus
  • quadrangle, quadrilateral
  • parallelogram
  • quadrature
  • polygon, pentagon, hexagon, heptagon, octagon, oxygon, decagon. pyramid, cone. Platonic bodies
  • cube, rhomboid
  • tetrahedron, pentahedron, hexahedron, octahedron, dodecahedron, icosahedron, eicosahedron
  • prism, pyramid
  • parallelopiped
  • curb roof, gambrel roof, mansard roof.
Verbs
  • bend, fork, bifurcate, crinkle.
Adjectives
  • angular, bent, crooked, aduncous, uncinated, aquiline, jagged, serrated
  • falciform, falcated
  • furcated, forked, bifurcate, zigzag
  • furcular
  • hooked
  • dovetailed
  • knock kneed, crinkled, akimbo, kimbo, geniculated
  • oblique etc. Obliquity. fusiform [Micro.], wedge-shaped, cuneiform
  • cuneate, multangular, oxygonal
  • triangular, trigonal, trilateral
  • quadrangular, quadrilateral
  • foursquare
  • rectangular, square, multilateral
  • polygonal etc. n.
  • cubical, rhomboid, rhomboidal, pyramidal.

Curvature

Nouns
  • curvature, curvity, curvation
  • incurvature, incurvity
  • incurvation
  • bend
  • flexure, flexion, flection
  • conflexure
  • crook, hook, bought, bending
  • deflection, deflexion
  • inflection, inflexion
  • concameration
  • arcuation, devexity, turn, deviation, detour, sweep
  • curl, curling
  • bough
  • recurvity, recurvation
  • sinuosity etc. [Complex curvature.] Convolution. kink. carve, arc, arch, arcade, vault, bow, crescent, half-moon, lunule, horseshoe, loop, crane neck
  • parabola, hyperbola
  • helix, spiral
  • catenary, festoon
  • conchoid, cardioid
  • caustic
  • tracery
  • arched ceiling, arched roof
  • bay window, bow window. sine curve
  • spline, spline curve, spline function
  • obliquity etc. Obliquity.
Verbs
  • be curved, c. adj.
  • curve, sweep, sway, swag, sag
  • deviate etc. Deviation
  • curl, turn
  • reenter. render curved etc. adj.
  • flex, bend, curve, incurvate
  • inflect
  • deflect, scatter [Phys.]
  • refract (light) Light
  • crook
  • turn, round, arch, arcuate, arch over, concamerate
  • bow, curl, recurve, frizzle. rotundity etc. Rotundity
  • convexity etc. Convexity.
Adjectives
  • curved etc. v.
  • curviform, curvilineal, curvilinear
  • devex, devious
  • recurved, recurvous
  • crump
  • bowed etc. v.
  • vaulted, hooked
  • falciform, falcated
  • semicircular, crescentic
  • sinusoid [Geom.], parabolic, paraboloid
  • luniform, lunular
  • semilunar, conchoidal
  • helical, double helical, spiral
  • kinky
  • cordiform, cordated
  • cardioid
  • heart shaped, bell shaped, boat shaped, crescent shaped, lens shaped, moon shaped, oar shaped, shield shaped, sickle shaped, tongue shaped, pear shaped, fig shaped
  • kidney-shaped, reniform
  • lentiform, lenticular
  • bow-legged etc. (distorted) [Irregularity of form.] Distortion
  • oblique etc. Obliquity
  • circular etc. [Simple circularity.] Circularity. aduncated, arclike, arcuate, arched, beaked
  • bicorn, bicornuous, bicornute
  • clypeate, clypeiform
  • cymbiform, embowed, galeiform
  • hamate, hamiform, hamous
  • hooked
  • linguiform, lingulate
  • lobiform, lunate, navicular, peltate, remiform, rhamphoid
  • rostrate, rostriferous, rostroid
  • scutate, scaphoid, uncate
  • unguiculate, unguiform.

Straightness

Nouns
  • straightness, rectilinearity, directness
  • inflexibility etc. (stiffness) Hardness
  • straight line, right line, direct line
  • short cut.
Verbs
  • be straight etc. adj.
  • have no turning
  • not incline to either side, not bend to either side, not turn to either side, not deviate to either side
  • go straight
  • steer for etc. (directions) Direction. render straight, straighten, rectify
  • set straight, put straight
  • unbend, unfold, uncurl etc. [Complex curvature.] Convolution, unravel etc. Crossing, unwrap.
Adjectives
  • straight
  • rectilinear, rectilineal
  • direct, even, right, true, in a line
  • unbent, virgate etc. v.
  • undeviating, unturned, undistorted, unswerving
  • straight as an arrow etc. (direct) Direction
  • inflexible etc. Hardness. laser-straight
  • ramrod-straight.

Circularity (Simple circularity)

Nouns
  • circularity, roundness
  • rotundity etc. Rotundity. circle, circlet, ring, areola, hoop, roundlet, annulus, annulet, bracelet, armlet
  • ringlet
  • eye, loop, wheel
  • cycle, orb, orbit, rundle, zone, belt, cordon, band
  • contrate wheel, crown wheel
  • hub
  • nave
  • sash, girdle, cestus, cincture, baldric, fillet, fascia, wreath, garland
  • crown, corona, coronet, chaplet, snood, necklace, collar
  • noose, lasso, lassoo. ellipse, oval, ovule
  • ellipsoid, cycloid
  • epicycloid [Geom.], epicycle
  • semicircle
  • quadrant, sextant, sector. sphere etc. Rotundity.
Verbs
Adjectives
  • round, rounded, circular, annular, orbicular
  • oval, ovate
  • elliptic, elliptical
  • egg-shaped
  • pear-shaped etc. Curvature
  • cycloidal etc. n.
  • spherical etc. Rotundity.

Convolution (Complex curvature)

Nouns
  • winding etc. v.
  • convolution, involution, circumvolution
  • wave, undulation, tortuosity, anfractuosity
  • sinuosity, sinuation
  • meandering, circuit, circumbendibus, twist, twirl, windings and turnings, ambages
  • torsion
  • inosculation
  • reticulation etc. (crossing) Crossing
  • rivulation
  • roughness etc. Roughness. coil, roll, curl
  • buckle, spiral, helix, corkscrew, worm, volute, rundle
  • tendril
  • scollop, scallop, escalop
  • kink
  • ammonite, snakestone. serpent, eel, maze, labyrinth. knot.
Verbs
  • be convoluted etc. adj.
  • wind, twine, turn and twist, twirl
  • wave, undulate, meander
  • inosculate
  • entwine, intwine
  • twist, coil, roll
  • wrinkle, curl, crisp, twill
  • frizzle
  • crimp, crape, indent, scollop, scallop, wring, intort
  • contort
  • wreathe etc. (cross) Crossing.
Adjectives
  • convoluted
  • winding, twisted etc. v.
  • tortile, tortive
  • wavy
  • undated, undulatory
  • circling, snaky, snake-like, serpentine
  • serpent, anguill, vermiform
  • vermicular
  • mazy, tortuous, sinuous, flexuous, anfractuous, reclivate, rivulose, scolecoid
  • sigmoid, sigmoidal [Geom.]
  • spiriferous, spiroid
  • involved, intricate, complicated, perplexed
  • labyrinth, labyrinthic, labyrinthian, labyrinthine
  • peristaltic
  • daedalian
  • kinky, knotted. wreathy, frizzly, crepe, buckled
  • raveled etc. (in disorder) [Absence, or want of Order, etc.] Disorder. spiral, coiled, helical
  • cochleate, cochleous
  • screw-shaped
  • turbinated, turbiniform.
Adverbs
  • in and out, round and round
  • a can of worms
  • Gordian knot.

Rotundity

Nouns
  • rotundity
  • roundness etc. adj.
  • cylindricity
  • sphericity, spheroidity
  • globosity. cylinder, cylindroid, cylindrical
  • barrel, drum
  • roll, roller
  • rouleau, column, rolling-pin, rundle. cone, conoid
  • pear shape, egg shape, bell shape. sphere, globe, ball, boulder, bowlder
  • spheroid, ellipsoid
  • oblong spheroid
  • oblate spheroid, prolate spheroid
  • drop, spherule, globule, vesicle, bulb, bullet, pellet, pelote, clew, pill, marble, pea, knob, pommel, horn
  • knot (convolution) [Complex curvature.] Convolution. curved surface, hypersphere
  • hyperdimensional surface.
Verbs
  • render spherical etc. adj.
  • form into a sphere, sphere, roll into a ball
  • give rotundity etc. n.
  • round.
Adjectives
  • rotund
  • round etc. (circular) [Simple circularity.] Circularity
  • cylindric, cylindrical, cylindroid
  • columnar, lumbriciform
  • conic, conical
  • spherical, spheroidal
  • globular, globated, globous, globose
  • egg shaped, bell shaped, pear shaped
  • ovoid, oviform
  • gibbous
  • rixiform
  • campaniform, campanulate, campaniliform
  • fungiform, bead-like, moniliform, pyriform, bulbous
  • round as an orange, round as an apple, round as a ball, round as a billiard ball, round as a cannon ball.

Superficial Form

Convexity

Nouns
  • convexity, prominence, projection, swelling, gibbosity, bilge, bulge, protuberance, protrusion
  • camber, cahot [U.S.]. thank-ye-ma'am [U.S.]. swell. intumescence
  • tumour [Brit.], tumor
  • tubercle, tuberosity [Anat.]
  • excrescence
  • hump, hunch, bunch. boss, embossment, hub, hubble
  • [convex body parts] tooth [U.S.], knob, elbow, process, apophysis, condyle, bulb, node, nodule, nodosity, tongue, dorsum, bump, clump
  • sugar loaf etc. (sharpness) Sharpness
  • bow
  • mamelon
  • molar
  • belly, corporation, pot belly, gut [Coll.]
  • withers, back, shoulder, lip, flange. [convexities on skin] pimple, zit [Slang]
  • wen, wheel, papula [Med.], pustule, pock, proud flesh, growth, sarcoma, caruncle, corn, wart, pappiloma, furuncle, polypus, fungus, fungosity, exostosis, bleb, blister, blain
  • boil etc. (disease) Disease
  • airbubble, blob, papule, verruca. [convex body parts on chest] papilla, nipple, teat, tit [Vulg.], titty [Vulg.], boob [Vulg.], knocker [Vulg.], pap, breast, dug, mammilla. [prominent convexity on the face] proboscis, nose, neb, beak, snout, nozzle, schnoz [Coll.]. peg, button, stud, ridge, rib, jutty, trunnion, snag. cupola, dome, arch, balcony, eaves
  • pilaster. relief, cameo
  • bassorilievo, mezzorilevo, altorivievo
  • low relief, high relief. hill etc. (height) Height
  • cape, promontory, mull
  • forehead, foreland
  • point of land, mole, jetty, hummock, ledge, spur
  • naze, ness.
Verbs
  • be prominent etc. adj.
  • project, bulge, protrude, pout, bunch
  • jut out, stand out, stick out, poke out
  • stick up, bristle up, start up, cock up, shoot up
  • swell over, hang over, bend over
  • beetle. render prominent etc. adj.
  • raise Elevation
  • emboss, chase. [become convex] belly out.
Adjectives
  • convex, prominent, protuberant, projecting etc. v.
  • bossed, embossed, bossy, nodular, bunchy
  • clavate, clavated, claviform
  • hummocky, moutonne, mammiliform
  • papulous, papilose
  • hemispheric, bulbous
  • bowed, arched
  • bold
  • bellied
  • tuberous, tuberculous
  • tumous
  • cornute, odontoid
  • lentiform, lenticular
  • gibbous
  • club shaped, hubby [U.S.], hubbly [U.S.], knobby, papillose, saddle-shaped, selliform, subclavate, torose, ventricose, verrucose. salient, in relief, raised, repousse
  • bloated etc., (expanded) Expansion.

Flatness

Nouns
  • flatness etc. adj.
  • smoothness etc. Smoothness. plane
  • level etc. Horizontality
  • plate, platter, table, tablet, slab.
Verbs
Adjectives
  • flat, plane, even, flush, scutiform, discoid
  • level etc. (horizontal) Horizontality
  • flat as a pancake, flat as a fluke, flat as a flounder, flat as a board, flat as my hand.

Concavity

Nouns
  • concavity, depression, dip
  • hollow, hollowness
  • indentation, intaglio, cavity, dent, dint, dimple, follicle, pit, sinus, alveolus, lacuna
  • excavation, strip mine
  • trough etc. (furrow) Furrow
  • honeycomb. cup, basin, crater, punch bowl
  • cell etc. (receptacle) Receptacle
  • socket. valley, vale, dale, dell, dingle, combe, bottom, slade, strath, glade, grove, glen, cave, cavern, cove
  • grot, grotto
  • alcove, cul-de-sac
  • gully etc. Interval
  • arch etc. (curve) Curvature
  • bay etc. (of the sea) Gulf. Lake. excavator, sapper, miner. honeycomb (sponge) Concavity.Existence.
Verbs
  • be concave etc. adj.
  • retire, cave in. render concave etc. adj.
  • depress, hollow
  • scoop, scoop out
  • gouge, gouge out, dig, delve, excavate, dent, dint, mine, sap, undermine, burrow, tunnel, stave in.
Adjectives
  • depressed etc. v.
  • alveolate, calathiform, cup-shaped, dishing
  • favaginous, faveolate, favose
  • scyphiform, scyphose
  • concave, hollow, stove in
  • retiring
  • retreating
  • cavernous
  • porous etc. (with holes) Opening
  • infundibul, infundibular, infundibuliform
  • funnel shaped, bell shaped
  • campaniform, capsular
  • vaulted, arched.

Sponge

Nouns
  • ponge, honeycomb, network
  • frit [Chem], filter. sieve, net, screen (opening) Opening.
Adjectives
  • cellular, spongy, spongious
  • honeycombed, alveolar
  • sintered
  • porous (opening) Opening.

Sharpness

Nouns
  • sharpness etc. adj.
  • acuity, acumination
  • spinosity. point, spike, spine, spicule [Biol.], spiculum
  • needle, hypodermic needle, tack, nail, pin
  • prick, prickle
  • spur, rowel, barb
  • spit, cusp
  • horn, antler
  • snag
  • tag thorn, bristle
  • Adam's needle, bear grass [U.S.], tine, yucca. nib, tooth, tusk
  • spoke, cog, ratchet. crag, crest, cone peak, sugar loaf, pike, aiguille
  • spire, pyramid, steeple. beard, porcupine, hedgehog, brier, bramble, thistle
  • comb
  • awn, beggar's lice, bur, burr, catchweed, cleavers, clivers, goose, grass, hairif, hariff, flax comb, hackle, hatchel, heckle. wedge
  • knife edge, cutting edge
  • blade, edge tool, cutlery, knife, penknife, whittle, razor, razor blade, safety razor, straight razor, electric razor
  • scalpel
  • bistoury, lancet
  • plowshare, coulter, colter
  • hatchet, ax, pickax, mattock, pick, adze, gill
  • billhook, cleaver, cutter
  • scythe, sickle
  • scissors, shears, pruning shears, cutters, wire cutters, nail clipper, paper cutter
  • sword etc. (arms) Arms
  • bodkin etc. (perforator) Perforator
  • belduque, bowie knife, paring knife
  • bushwhacker [U.S.]
  • drawing knife, drawing shave
  • microtome [Micro.]
  • chisel, screwdriver blade
  • flint blade
  • guillotine. sharpener, hone, strop
  • grindstone, whetstone
  • novaculite
  • steel, emery.
Verbs
  • be sharp etc. adj.
  • taper to a point
  • bristle with. render sharp etc. adj.
  • sharpen, point, aculeate, whet, barb, spiculate, set, strop, grind
  • chip (flint). cut etc. (sunder) Disjunction.
Adjectives
  • sharp, keen
  • acute
  • acicular, aciform
  • aculeated, acuminated
  • pointed
  • tapering
  • conical, pyramidal
  • mucronate, mucronated
  • spindle shaped, needle shaped
  • spiked, spiky, ensiform, peaked, salient
  • cusped, cuspidate, cuspidated
  • cornute, cornuted, cornicultate
  • prickly
  • spiny, spinous, spicular
  • thorny, bristling, muricated, pectinated, studded, thistly, briary
  • craggy etc. (rough) Roughness
  • snaggy, digitated, two-edged, fusiform [Micro.]
  • dentiform, denticulated
  • toothed
  • odontoid
  • starlike
  • stellated, stelliform
  • sagittate, sagittiform
  • arrowheaded
  • arrowy, barbed, spurred. acinaciform
  • apiculate, apiculated
  • aristate, awned, awny, bearded, calamiform, cone-shaped, coniform, crestate, echinate, gladiate
  • lanceolate, lanciform
  • awl, awl-shaped, lance-shaped, awl-shaped, scimitar-shaped, sword-shaped
  • setarious, spinuliferous, subulate, tetrahedral, xiphoid. cutting
  • sharp edged, knife edged
  • sharp as a razor, keen as a razor
  • sharp as a needle, sharp as a tack
  • sharpened etc. v.
  • set

Bluntness

Nouns
  • bluntness etc. adj..
Verbs
  • be blunt, render blunt etc. adj.
  • obtund, dull
  • take off the point, take off the edge
  • turn.
Adjectives
  • blunt, obtuse, dull, bluff
  • edentate, toothless.

Smoothness

Nouns
  • smoothness etc. adj.
  • polish, gloss
  • lubricity, lubrication. [smooth materials] down, velvet, velure, silk, satin
  • velveteen, velour, velours, velumen
  • glass, ice. slide
  • bowling green etc. (level) Horizontality
  • asphalt, wood pavement, flagstone, flags. [objects used to smooth other objects] roller, steam roller, lawn roller, rolling pin, rolling mill
  • sand paper, emery paper, emery cloth, sander
  • flat iron, sad iron
  • burnisher, turpentine and beeswax
  • polish, shoe polish. [art of cutting and polishing gemstones] lapidary. [person who polishes gemstones] lapidary, lapidarian.
Verbs
Adjectives
  • smooth
  • polished etc. v.
  • leiodermatous, slick, velutinous
  • even
  • level etc. Horizontality
  • plane etc. (flat) Flatness
  • sleek, glossy
  • silken, silky
  • lanate, downy, velvety
  • glabrous, slippery, glassy, lubricous, oily, soft, unwrinkled
  • smooth as glass, smooth as ice, smooth as monumental alabaster, smooth as velvet, smooth as oil
  • slippery as an eel
  • woolly etc. (feathery) Roughness.
Phrases
  • smooth as silk
  • slippery as coonshit on a pump handle
  • slippery as a greased pig.

Roughness

Nouns
  • roughness etc. adj.
  • tooth, grain, texture, ripple
  • asperity, rugosity, salebrosity, corrugation, nodosity
  • arborescence etc. [Regularity of form.] Symmetry
  • pilosity. brush, hair, beard, shag, mane, whisker, moustache, imperial, tress, lock, curl, ringlet
  • fimbriae, pili, cilia, villi
  • lovelock
  • beaucatcher
  • curl paper
  • goatee
  • papillote, scalp lock. plumage, plumosity
  • plume, panache, crest
  • feather, tuft, fringe, toupee. wool, velvet, plush, nap, pile, floss, fur, down
  • byssus, moss, bur
  • fluff. knot (convolution) [Complex curvature.] Convolution.
Verbs
  • be rough etc. adj.
  • go against the grain. render-rough etc. adj.
  • roughen, ruffle, crisp, crumple, corrugate, set on edge, stroke the wrong way, rumple.
Adjectives
  • rough, uneven, scabrous, scaly, knotted
  • rugged, rugose, rugous
  • knurly
  • asperous, crisp, salebrous, gnarled, unpolished, unsmooth, roughhewn
  • craggy, cragged
  • crankling, scraggy
  • prickly etc. (sharp) Sharpness
  • arborescent etc. [Regularity of form.] Symmetry
  • leafy, well-wooded
  • feathery
  • plumose, plumigerous
  • laciniate, laciniform, laciniose
  • pappose
  • pileous, pilose
  • trichogenous, trichoid [Med.]
  • tufted, fimbriated, hairy, ciliated, filamentous, hirsute
  • crinose, crinite
  • bushy, hispid, villous, pappous, bearded, pilous, shaggy, shagged
  • fringed, befringed
  • setous, setose, setaceous
  • like quills upon the fretful porcupine" [Hamlet]
  • rough as a nutmeg grater, rough as a bear. downy, velvety, flocculent, woolly
  • lanate, lanated
  • lanuginous, lanuginose
  • tomentose
  • fluffy.
Adverbs
  • against the grain.

Notch

Nouns
  • notch, dent, nick, cut
  • indent, indentation
  • dimple. embrasure, battlement, machicolation
  • saw, tooth, crenelle, scallop, scollop, vandyke
  • depression
  • jag.
Verbs
  • notch, nick, cut, dent, indent, jag, scarify, scotch, crimp, scallop, scollop, crenulate, vandyke.
Adjectives
  • notched etc. v.
  • crenate, crenated
  • dentate, dentated
  • denticulate, denticulated
  • toothed, palmated, serrated.

Fold

Nouns
  • fold, plicature, plait, pleat, ply, crease
  • tuck, gather
  • flexion, flexure, joint, elbow, double, doubling, duplicature, gather, wrinkle, rimple, crinkle, crankle, crumple, rumple, rivel, ruck, ruffle, dog's ear, corrugation, frounce, flounce, lapel
  • pucker, crow's feet
  • plication.
Verbs
  • fold, double, plicate, plait, crease, wrinkle, crinkle, crankle, curl, cockle up, cocker, rimple, rumple, flute, frizzle, frounce, rivel, twill, corrugate, ruffle, crimple, crumple, pucker
  • turn down, double down, down under
  • tuck, ruck, hem, gather.
Adjectives
  • folded, fluted, pleated etc. v..

Furrow

Nouns
  • furrow, groove, rut, sulcus [Anat.], scratch, streak, striae, crack, score, incision, slit
  • chamfer, fluting
  • corduroy road, cradle hole. channel, gutter, trench, ditch, dike, dyke
  • moat, fosse, trough, kennel
  • ravine etc. (interval) Interval
  • tajo [U.S.], thank-ye-ma'am [U.S.].
Verbs
  • furrow etc. n.
  • flute, plow
  • incise, engrave, etch, bite in.
Adjectives
  • furrowed etc. v.
  • ribbed, striated, sulcated [Anat.], fluted, canaliculated
  • bisulcous, bisulcate, bisulcated
  • canaliferous
  • trisulcate
  • corduroy
  • unisulcate
  • costate, rimiform.

Opening

Nouns
  • hole, foramen
  • puncture, perforation
  • fontanel
  • transforation
  • pinhole, keyhole, loophole, porthole, peephole, mousehole, pigeonhole
  • eye of a needle
  • eyelet
  • slot. opening
  • aperture, apertness
  • hiation, yawning, oscitancy, dehiscence, patefaction, pandiculation
  • chasm etc. (interval) Interval. embrasure, window, casement
  • abatjour
  • light
  • sky light, fan light
  • lattice
  • bay window, bow window
  • oriel [Arch.]
  • dormer, lantern. outlet, inlet
  • vent, vomitory
  • embouchure
  • orifice, mouth, sucker, muzzle, throat, gullet, weasand, wizen, nozzle
  • placket. portal, porch, gate, ostiary, postern, wicket, trapdoor, hatch, door
  • arcade
  • cellarway, driveway, gateway, doorway, hatchway, gangway
  • lich gate. way, path etc. Method [Path.]
  • thoroughfare
  • channel
  • passage, passageway
  • tube, pipe
  • water pipe etc. [Channel for the passage of water.] Conduit
  • air pipe etc. [Channel for the passage of air.] Airpipe
  • vessel, tubule, canal, gut, fistula
  • adjutage, ajutage
  • ostium
  • smokestack
  • chimney, flue, tap, funnel, gully, tunnel, main
  • mine, pit, adit, shaft
  • gallery. alley, aisle, glade, vista. bore, caliber
  • pore
  • blind orifice
  • fulgurite, thundertube. porousness, porosity. sieve, cullender, colander
  • cribble, riddle, screen
  • honeycomb. apertion, perforation
  • piercing etc. v.
  • terebration, empalement, pertusion, puncture, acupuncture, penetration. key etc. Instrumentality, opener, master key, password, combination, passe-partout.
Verbs
  • open, ope, gape, yawn, bilge
  • fly open. perforate, pierce, empierce, tap, bore, drill
  • mine etc. (scoop out) Concavity
  • tunnel
  • transpierce, transfix
  • enfilade, impale, spike, spear, gore, spit, stab, pink, puncture, lance, stick, prick, riddle, punch
  • stave in. cut a passage through
  • make way for, make room for. uncover, unclose, unrip
  • lay open, cut open, rip open, throw open, pop open, blow open, pry open, tear open, pull open.
Adjectives
  • open
  • perforated etc. v.
  • perforate
  • wide open, ajar, unclosed, unstopped
  • oscitant, gaping, yawning
  • patent. tubular, cannular, fistulous
  • pervious, permeable
  • foraminous
  • vesicular, vasicular
  • porous, follicular, cribriform, honeycombed, infundibular, riddled
  • tubulous, tubulated
  • piped, tubate. opening etc. v.
  • aperient.
Int
  • open sesame!

Closure

Nouns
  • closure, occlusion, blockade
  • shutting up etc. v.
  • obstruction etc. (hindrance) Hindrance
  • embolus
  • contraction etc. Contraction
  • infarction
  • constipation, obstipation
  • blind alley, blind corner
  • keddah
  • cul-de-sac, caecum
  • imperforation, imperviousness etc. adj.
  • impermeability
  • stopper etc. Stopper.
Verbs
  • close, occlude, plug
  • block up, stop up, fill up, bung up, cork up, button up, stuff up, shut up, dam up
  • blockade, obstruct etc. (hinder) Hindrance
  • bar, bolt, stop, seal, plumb
  • choke, throttle
  • ram down, dam, cram
  • trap, clinch
  • put to the door, shut the door.
Adjectives
  • closed etc. v.
  • shut, operculated
  • unopened. unpierced, imporous, caecal [Med.]
  • closable
  • imperforate, impervious, impermeable
  • impenetrable
  • impassable, unpassable
  • invious
  • pathless, wayless
  • untrodden, untrod. unventilated
  • air tight, water tight
  • hermetically sealed
  • tight, snug.

Perforator

Nouns
  • perforator, piercer, borer, auger, chisel, gimlet, stylet, drill, wimble, awl, bradawl, scoop, terrier, corkscrew, dibble, trocar [Med.], trepan, probe, bodkin, needle, stiletto, rimer, warder, lancet
  • punch, puncheon
  • spikebit, gouge
  • spear etc. (weapon) Arms
  • puncher
  • punching machine, punching press
  • punch pliers.

Stopper

Nouns
  • stopper, stopple
  • plug, cork, bung, spike, spill, stopcock, tap
  • rammer
  • ram, ramrod
  • piston
  • stop-gap
  • wadding, stuffing, padding, stopping, dossil, pledget, tompion, tourniquet. cover etc. Covering
  • valve, vent peg, spigot, slide valve. janitor, doorkeeper, porter, warder, beadle, cerberus, ostiary.