| cotyloidal | (adjective) of the cup-shaped socket that receives the head of the thigh bone | Synonyms: acetabular, cotyloid |
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| coucal | (noun) Old World ground-living cuckoo having a long dagger-like hind claw | - |
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| council | (noun) a meeting of people for consultation | - |
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| (noun) a body serving in an administrative capacity | - |
| (noun) (Christianity) an assembly of theologians and bishops and other representatives of different churches or dioceses that is convened to regulate matters of discipline or doctrine | - |
| counsel | (noun) something that provides direction or advice as to a decision or course of action | Synonyms: counseling, counselling, direction, guidance |
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| (noun) a lawyer who pleads cases in court | Synonyms: advocate, counsellor, counselor-at-law, counselor, pleader |
| (verb) give advice to | Synonyms: advise, rede |
| counterfactual | (adjective) going counter to the facts (usually as a hypothesis) | Synonyms: contrary to fact |
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| counterfoil | (noun) the part of a check that is retained as a record | Synonyms: check stub, stub |
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| counterproposal | (noun) a proposal offered as an alternative to an earlier proposal | - |
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| countervail | (verb) oppose and mitigate the effects of by contrary actions | Synonyms: counteract, counterbalance, neutralize |
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| (verb) compensate for or counterbalance | Synonyms: offset |
| courbaril | (noun) West Indian locust tree having pinnate leaves and panicles of large white or purplish flowers; yields very hard tough wood | Synonyms: Hymenaea courbaril |
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| coverall | (noun) a loose-fitting protective garment that is worn over other clothing | - |
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| cowbell | (noun) a bell hung around the neck of cow so that the cow can be easily located | - |
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| cowgirl | (noun) a woman cowboy | - |
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| cowl | (noun) protective covering consisting of a metal part that covers the engine | Synonyms: bonnet, cowling, hood |
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| (noun) a loose hood or hooded robe (as worn by a monk) | - |
| (verb) cover with or as with a cowl | - |
| coyol | (noun) tropical American palm having edible nuts and yielding a useful fiber | Synonyms: Acrocomia vinifera, coyol palm |
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| cranesbill | (noun) any of numerous geraniums of the genus Geranium | Synonyms: crane's bill |
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| cranial | (adjective) of or relating to the cranium which encloses the brain | - |
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| craniometrical | (adjective) of or relating to craniometry | Synonyms: craniometric |
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| crateful | (noun) the quantity contained in a crate | Synonyms: crate |
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| crawl | (noun) a slow mode of locomotion on hands and knees or dragging the body | Synonyms: crawling, creep, creeping |
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| (noun) a swimming stroke; arms are moved alternately overhead accompanied by a flutter kick | Synonyms: Australian crawl, front crawl |
| (noun) a very slow movement | - |
| (verb) move slowly; in the case of people or animals with the body near the ground | Synonyms: creep |
| (verb) swim by doing the crawl | - |
| (verb) show submission or fear | Synonyms: cower, creep, cringe, fawn, grovel |
| (verb) be full of | - |
| (verb) feel as if crawling with insects | - |
| credal | (adjective) of or relating to a creed | Synonyms: creedal |
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| credential | (noun) a document attesting to the truth of certain stated facts | Synonyms: certificate, certification, credentials |
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| creedal | (adjective) of or relating to a creed | Synonyms: credal |
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| creel | (noun) a wicker basket used by anglers to hold fish | - |
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| crenel | (noun) a notch or open space between two merlons in a crenelated battlement | Synonyms: crenelle |
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| (noun) one of a series of rounded projections (or the notches between them) formed by curves along an edge (as the edge of a leaf or piece of cloth or the margin of a shell or a shriveled red blood cell observed in a hypertonic solution etc.) | Synonyms: crenation, crenature, crenelle, scallop |
| (verb) supply with battlements | Synonyms: crenelate, crenellate |
| creosol | (noun) a colorless to yellow aromatic liquid that is a constituent of creosote | - |
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| cresol | (noun) any of three poisonous colorless isomeric phenols; derived from coal or wood tar; used as a disinfectant | Synonyms: methyl phenol |
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| criminal | (adjective) guilty of crime or serious offense | - |
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| (adjective) involving or being or having the nature of a crime | Synonyms: felonious |
| (adjective) bringing or deserving severe rebuke or censure | Synonyms: condemnable, deplorable, reprehensible, vicious |
| (noun) someone who has committed a crime or has been legally convicted of a crime | Synonyms: crook, felon, malefactor, outlaw |
| criminological | (adjective) of or relating to or involved in criminology | - |
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| cristal | (noun) street names for methylenedioxymethamphetamine | Synonyms: Adam, disco biscuit, ecstasy, go, hug drug, X, XTC |
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| criterial | (adjective) serving as a basis for evaluation | Synonyms: criterional |
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| criterional | (adjective) serving as a basis for evaluation | Synonyms: criterial |
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| critical | (adjective) marked by a tendency to find and call attention to errors and flaws | - |
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| (adjective) characterized by careful evaluation and judgment | - |
| (adjective) being in or verging on a state of crisis or emergency | - |
| (adjective) at or of a point at which a property or phenomenon suffers an abrupt change especially having enough mass to sustain a chain reaction | - |
| (adjective) of or involving or characteristic of critics or criticism | - |
| (adjective) forming or having the nature of a turning point or crisis | Synonyms: decisive |
| (adjective) urgently needed; absolutely necessary | Synonyms: vital |
| crossbill | (noun) finch with a bill whose tips cross when closed | Synonyms: Loxia curvirostra |
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| crotal | (noun) any of several lichens of the genus Parmelia from which reddish brown or purple dyes are made | Synonyms: crottal, crottle |
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| crottal | (noun) any of several lichens of the genus Parmelia from which reddish brown or purple dyes are made | Synonyms: crotal, crottle |
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| crucial | (adjective) of extreme importance; vital to the resolution of a crisis | Synonyms: important |
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| (adjective) of the greatest importance | Synonyms: all-important, all important, essential, of the essence |
| (adjective) having crucial relevance | - |
| cruel | (adjective) (of persons or their actions) able or disposed to inflict pain or suffering | Synonyms: barbarous, brutal, fell, roughshod, savage, vicious |
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| crural | (adjective) of or relating the leg from the knee to the foot | - |
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| crustal | (adjective) of or relating to or characteristic of the crust of the earth or moon | - |
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| cryptical | (adjective) having a secret or hidden meaning | Synonyms: cabalistic, cryptic, kabbalistic, qabalistic, sibylline |
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| (adjective) of an obscure nature | Synonyms: cryptic, deep, inscrutable, mysterious, mystifying |
| cryptographical | (adjective) of or relating to cryptanalysis | Synonyms: cryptanalytic, cryptographic, cryptologic, cryptological |
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| cryptological | (adjective) of or relating to cryptanalysis | Synonyms: cryptanalytic, cryptographic, cryptographical, cryptologic |
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| crystal | (noun) a protective cover that protects the face of a watch | Synonyms: watch crystal, watch glass |
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| (noun) glassware made of quartz | - |
| (noun) a crystalline element used as a component in various electronic devices | - |
| (noun) a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces | Synonyms: crystallization |
| (noun) a solid formed by the solidification of a chemical and having a highly regular atomic structure | - |
| (noun) colorless glass made of almost pure silica | Synonyms: lechatelierite, quartz, quartz glass, vitreous silica |
| cubical | (adjective) shaped like a cube | Synonyms: cube-shaped, cubelike, cubiform, cuboid, cuboidal |
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| cubital | (adjective) of or relating to the elbow | - |
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| cuboidal | (adjective) shaped like a cube | Synonyms: cube-shaped, cubelike, cubical, cubiform, cuboid |
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| cudgel | (noun) a club that is used as a weapon | - |
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| (verb) strike with a cudgel | Synonyms: fustigate |
| cul | (noun) a passage with access only at one end | Synonyms: cul de sac, dead end |
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| cull | (noun) the person or thing that is rejected or set aside as inferior in quality | Synonyms: reject |
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| (verb) look for and gather | Synonyms: pick, pluck |
| (verb) remove something that has been rejected | - |
| cultural | (adjective) of or relating to the shared knowledge and values of a society | - |
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| (adjective) of or relating to the arts and manners that a group favors | - |
| (adjective) relating to the raising of plants or animals | - |
| (adjective) denoting or deriving from or distinctive of the ways of living built up by a group of people | Synonyms: ethnic, ethnical |
| cuneal | (adjective) shaped like a wedge | Synonyms: cuneiform, wedge-shaped |
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| cupel | (noun) a small porous bowl made of bone ash used in assaying to separate precious metals from e.g. lead | Synonyms: bone-ash cup, refractory pot |
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| cupful | (noun) the quantity a cup will hold | Synonyms: cup |
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| cupronickel | (noun) a 60/40 alloy of copper and nickel | - |
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| curatorial | (adjective) of or relating to a curator or the duties of a curator | - |
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| curl | (noun) lock of hair in the shape of a spiral or curl | Synonyms: ringlet, whorl |
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| (noun) a round shape formed by a series of concentric circles (as formed by leaves or flower petals) | Synonyms: coil, curlicue, gyre, ringlet, roll, scroll, whorl |
| (verb) form a curl, curve, or kink | Synonyms: curve, kink |
| (verb) play the Scottish game of curling | - |
| (verb) twist or roll into coils or ringlets | Synonyms: wave |
| (verb) wind around something in coils or loops | Synonyms: coil, loop |
| (verb) shape one's body into a curl | Synonyms: curl up, draw in |
| cursorial | (adjective) (of limbs and feet) adapted for running | - |
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| curtail | (verb) place restrictions on | Synonyms: curb, cut back, restrict |
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| (verb) terminate or abbreviate before its intended or proper end or its full extent | Synonyms: clip, cut short |
| curtal | (adjective) (archaic) docked | - |
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| curvilineal | (adjective) characterized by or following a curved line | Synonyms: curvilinear |
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| cuspidal | (adjective) having cusps or points | Synonyms: cuspate, cuspated, cusped, cuspidate, cuspidated |
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| custodial | (adjective) providing protective supervision; watching over or safeguarding | Synonyms: tutelar, tutelary |
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| cutaneal | (adjective) relating to or existing on or affecting the skin | Synonyms: cutaneous, dermal |
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| cxl | (adjective) being ten more than one hundred thirty | Synonyms: 140, one hundred forty |
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| cyanobacterial | (adjective) relating to or caused by photosynthetic bacteria of the class Cyanobacteria | Synonyms: cyanophyte |
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| cyclical | (adjective) recurring in cycles | Synonyms: cyclic |
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| cyclohexanol | (noun) a colorless oily alcohol that smells like camphor | - |
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| cycloidal | (adjective) resembling a circle | Synonyms: cycloid |
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| cyclonal | (adjective) of or relating to or characteristic of a violent tropical storm | Synonyms: cyclonic, cyclonical |
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| (adjective) of or relating to or characteristic of the atmosphere around a low pressure center | Synonyms: cyclonic, cyclonical |
| cyclonical | (adjective) of or relating to or characteristic of a violent tropical storm | Synonyms: cyclonal, cyclonic |
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| (adjective) of or relating to or characteristic of the atmosphere around a low pressure center | Synonyms: cyclonal, cyclonic |
| cylindrical | (adjective) having the form of a cylinder | Synonyms: cylindric |
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| cymbal | (noun) a percussion instrument consisting of a concave brass disk; makes a loud crashing sound when hit with a drumstick or when two are struck together | - |
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| cynical | (adjective) believing the worst of human nature and motives; having a sneering disbelief in e.g. selflessness of others | Synonyms: misanthropic, misanthropical |
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| cytoarchitectural | (adjective) of or relating to cytoarchitecture | Synonyms: cytoarchitectonic |
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| cytogenetical | (adjective) of or relating to cytogenetics | Synonyms: cytogenetic |
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| cytol | (noun) the protoplasm of a cell excluding the nucleus; is full of proteins that control cell metabolism | Synonyms: cytoplasm |
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| cytological | (adjective) of or relating to the science of cytology | Synonyms: cytologic |
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| cytosol | (noun) the aqueous part of the cytoplasm within which various particles and organelles are suspended | - |
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| dactyl | (noun) a finger or toe in human beings or corresponding body part in other vertebrates | Synonyms: digit |
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| (noun) a metrical unit with stressed-unstressed-unstressed syllables | - |
| daedal | (adjective) complex and ingenious in design or function | - |
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| daffodil | (noun) any of numerous varieties of Narcissus plants having showy often yellow flowers with a trumpet-shaped central crown | Synonyms: Narcissus pseudonarcissus |
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| dahl | (noun) small highly nutritious seed of the tropical pigeon-pea plant | Synonyms: cajan pea, pigeon pea |
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| (noun) tropical woody herb with showy yellow flowers and flat pods; much cultivated in the tropics | Synonyms: cajan pea, Cajanus cajan, catjang pea, dhal, pigeon-pea plant, pigeon pea, red gram |
| dal | (noun) a metric unit of volume or capacity equal to 10 liters | Synonyms: decaliter, decalitre, dekaliter, dekalitre, dkl |
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| damosel | (noun) a young unmarried woman | Synonyms: damoiselle, damozel, damsel, demoiselle |
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| damozel | (noun) a young unmarried woman | Synonyms: damoiselle, damosel, damsel, demoiselle |
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| damsel | (noun) a young unmarried woman | Synonyms: damoiselle, damosel, damozel, demoiselle |
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| daredevil | (adjective) presumptuously daring | Synonyms: temerarious |
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| (noun) a reckless impetuous irresponsible person | Synonyms: harum-scarum, hothead, lunatic, madcap, swashbuckler |
| darnel | (noun) weedy annual grass often occurs in grainfields and other cultivated land; seeds sometimes considered poisonous | Synonyms: bearded darnel, cheat, Lolium temulentum, tare |
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| daygirl | (noun) a day boarder who is a girl | - |
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| deal | (noun) the act of distributing playing cards | - |
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| (noun) the act of apportioning or distributing something | - |
| (noun) a particular instance of buying or selling | Synonyms: business deal, trade |
| (noun) an agreement between parties (usually arrived at after discussion) fixing obligations of each | Synonyms: bargain |
| (noun) the type of treatment received (especially as the result of an agreement) | - |
| (noun) the cards held in a card game by a given player at any given time | Synonyms: hand |
| (noun) (often followed by `of') a large number or amount or extent | Synonyms: batch, flock, good deal, great deal, hatful, heap, lot, mass, mess, mickle, mint, mountain, muckle, passel, peck, pile, plenty, pot, quite a little, raft, sight, slew, spate, stack, tidy sum, wad |
| (noun) a plank of softwood (fir or pine board) | - |
| (noun) wood that is easy to saw (from conifers such as pine or fir) | Synonyms: softwood |
| (verb) take into consideration for exemplifying purposes | Synonyms: consider, look at, take |
| (verb) act on verbally or in some form of artistic expression | Synonyms: address, cover, handle, plow, treat |
| (verb) do business; offer for sale as for one's livelihood | Synonyms: sell, trade |
| (verb) administer or bestow, as in small portions | Synonyms: administer, allot, deal out, dish out, dispense, distribute, dole out, lot, mete out, parcel out, shell out |
| (verb) distribute cards to the players in a game | - |
| (verb) give (a specific card) to a player | - |
| (verb) give out as one's portion or share | Synonyms: apportion, divvy up, portion out, share |
| (verb) sell (especially of illegal material) | - |
| (verb) succeed in doing, achieving, or producing (something) with the limited or inadequate means available | Synonyms: contend, cope, get by, grapple, make do, make out, manage |
| (verb) direct the course of; manage or control | Synonyms: carry on, conduct |
| (verb) behave in a certain way towards others | - |
| (verb) take action with respect to (someone or something) | - |
| (verb) be in charge of, act on, or dispose of | Synonyms: care, handle, manage |
| decal | (noun) either a design that is fixed to some surface or a paper bearing the design which is to be transferred to the surface | Synonyms: decalcomania |
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| deceitful | (adjective) marked by deliberate deceptiveness especially by pretending one set of feelings and acting under the influence of another | Synonyms: ambidextrous, double-dealing, double-faced, double-tongued, duplicitous, Janus-faced, two-faced |
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| (adjective) involving deception | Synonyms: fallacious, fraudulent |
| decibel | (noun) a logarithmic unit of sound intensity; 10 times the logarithm of the ratio of the sound intensity to some reference intensity | Synonyms: dB |
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| decimal | (adjective) numbered or proceeding by tens; based on ten | Synonyms: denary |
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| (noun) a proper fraction whose denominator is a power of 10 | Synonyms: decimal fraction |
| (noun) a number in the decimal system | - |
| decompositional | (adjective) causing organic decay | - |
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| decontrol | (verb) relax or remove controls of | - |
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| deferential | (adjective) showing deference | Synonyms: deferent, regardful |
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| deferral | (noun) act of putting off to a future time | Synonyms: deferment, postponement |
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| (noun) a state of abeyance or suspended business | Synonyms: recess |
| deformational | (adjective) relating to or causing change in either shape or size of a material body or geometric figure | - |
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| defrayal | (noun) the act of paying money | Synonyms: defrayment, payment |
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