cabal – A number of persons secretly united for effecting by intrigue some private purpose.
cabalism – Superstitious devotion to one’s religion.
cabinet – The body of men constituting the official advisors of the executive head of a nation.
cacophony – A disagreeable, harsh, or discordant sound or combination of sounds or tones.
cadaverous – Resembling a corpse.
cadence – Rhythmical or measured flow or movement, as in poetry or the time and pace of marching troops.
cadenza – An embellishment or flourish, prepared or improvised, for a solo voice or instrument.
caitiff – Cowardly.
cajole – To impose on or dupe by flattering speech.
cajolery – Delusive speech.
calculable – That may be estimated by reckoning.
calculus – A concretion formed in various parts of the body resembling a pebble in hardness.
callosity – The state of being hard and insensible.
callow – Without experience of the world.
calorie – Amount of heat needed to raise the temperature of 1 kilogram of water 1 degree centigrade.
calumny – Slander.
Calvary – The place where Christ was crucified.
Calvinism – The system of doctrine taught by John Calvin.
Calvinize – To teach or imbue with the doctrines of Calvinism.
came – A leaden sash-bar or grooved strip for fastening panes in stained-glass windows.
cameo – Any small engraved or carved work in relief.
campaign – A complete series of connected military operations.
Canaanite – A member of one of the three tribes that dwelt in the land of Canaan, or western Palestine.
canary – Of a bright but delicate yellow.
candid – Straightforward.
candor – The quality of frankness or outspokenness.
canine – Characteristic of a dog.
canon – Any rule or law.
cant – To talk in a singsong, preaching tone with affected solemnity.
cantata – A choral composition.
canto – One of the divisions of an extended poem.
cantonment – The part of the town or district in which the troops are quartered.
capacious – Roomy.
capillary – A minute vessel having walls composed of a single layer of cells.
capitulate – To surrender or stipulate terms.
caprice – A whim.
caption – A heading, as of a chapter, section, document, etc.
captious – Hypercritical.
captivate – To fascinate, as by excellence. eloquence, or beauty.
carcass – The dead body of an animal.
cardiac – Pertaining to the heart.
cardinal – Of prime or special importance.
caret – A sign (^) placed below a line, indicating where omitted words, etc., should be inserted.
caricature – a picture or description in which natural characteristics are exaggerated or distorted.
carnage – Massacre.
carnal – Sensual.
carnivorous – Eating or living on flesh.
carouse – To drink deeply and in boisterous or jovial manner.
carrion – Dead and putrefying flesh.
cartilage – An elastic animal tissue of firm consistence.
cartridge – A charge for a firearm, or for blasting.
caste – The division of society on artificial grounds.
castigate – To punish.
casual – Accidental, by chance.
casualty – A fatal or serious accident or disaster.
cataclysm – Any overwhelming flood of water.
cataract – Opacity of the lens of the eye resulting in complete or partial blindness.
catastrophe – Any great and sudden misfortune or calamity.
cathode – The negative pole or electrode of a galvanic battery.
Catholicism – The system, doctrine, and practice of the Roman Catholic Church.
catholicity – Universal prevalence or acceptance.
cat-o-nine-tails – An instrument consisting of nine pieces of cord, formerly used for flogging in the army and navy.
caucus – A private meeting of members of a political party to select candidates.
causal – Indicating or expressing a cause.
caustic – Sarcastic and severe.
cauterize – To burn or sear as with a heated iron.
cede – To pass title to.
censor – An official examiner of manuscripts empowered to prohibit their publication.
censorious – Judging severely or harshly.
census – An official numbering of the people of a country or district.
centenary – Pertaining to a hundred years or a period of a hundred years.
centiliter – A hundredth of a liter.
centimeter – A length of one hundredth of a meter.
centurion – A captain of a company of one hundred infantry in the ancient Roman army.
cereal – Pertaining to edible grain or farinaceous seeds.
ceremonial – Characterized by outward form or ceremony.
ceremonious – Observant of ritual.
cessation – Discontinuance, as of action or motion.
cession – Surrender, as of possessions or rights.
chagrin – Keen vexation, annoyance, or mortification, as at one’s failures or errors.
chameleon – Changeable in appearance.
chancery – A court of equity, as distinguished from a common-law court.
chaos – Any condition of which the elements or parts are in utter disorder and confusion.
characteristic – A distinctive feature.
characterize – To describe by distinctive marks or peculiarities.
charlatan – A quack.
chasm – A yawning hollow, as in the earth’s surface.
chasten – To purify by affliction.
chastise – To subject to punitive measures.
chastity – Sexual or moral purity.
chateau – A castle or manor-house.
chattel – Any article of personal property.
check – To hold back.
chiffon – A very thin gauze used for trimmings, evening dress, etc.
chivalry – The knightly system of feudal times with its code, usages and practices.
cholera – An acute epidemic disease.
choleric – Easily provoked to anger.
choral – Pertaining to, intended for, or performed by a chorus or choir.
Christ – A title of Jesus
christen – To name in baptism.
Christendom – That part of the world where Christianity is generally professed.
chromatic – Belonging, relating to, or abounding in color.
chronology – The science that treats of computation of time or of investigation and arrangement of events.
chronometer – A portable timekeeper of the highest attainable precision.
cipher – To calculate arithmetically. (also a noun meaning zero or nothing)
circulate – To disseminate.
circumference – The boundary-line of a circle.
circumlocution – Indirect or roundabout expression.
circumnavigate – To sail quite around.
circumscribe – To confine within bounds.
circumspect – Showing watchfulness, caution, or careful consideration.
citadel – Any strong fortress.
cite – To refer to specifically.
claimant – One who makes a claim or demand, as of right.
clairvoyance – Intuitive sagacity or perception.
clamorous – Urgent in complaint or demand.
clan – A tribe.
clandestine – Surreptitious.
clangor – Clanking or a ringing, as of arms, chains, or bells; clamor.
clarify – To render intelligible.
clarion – A small shrill trumpet or bugle.
classify – To arrange in a class or classes on the basis of observed resemblance; and differences.
clearance – A certificate from the proper authorities that a vessel has complied with the law and may sail.
clemency – Mercy.
clement – Compassionate.
close-hauled – Having the sails set for sailing as close to the wind as possible.
clothier – One who makes or sells cloth or clothing.
clumsy – Awkward of movement.
coagulate – To change into a clot or a jelly, as by heat, by chemical action, or by a ferment.
coagulant – Producing coagulation.
coalescence – The act or process of coming together so as to form one body, combination, or product.
coalition – Combination in a body or mass.
coddle – To treat as a baby or an invalid.
codicil – A supplement adding to, revoking, or explaining in the body of a will.
coerce – To force.
coercion – Forcible constraint or restraint, moral or physical.
coercive – Serving or tending to force.
cogent – Appealing strongly to the reason or conscience.
cognate – Akin.
cognizant – Taking notice.
cohere – To stick together.
cohesion – Consistency.
cohesive – Having the property of consistency.
coincide – To correspond.
coincidence – A circumstance so agreeing with another: often implying accident.
coincident – Taking place at the same time.
collaborate – To labor or cooperate with another or others, especially in literary or scientific pursuits.
collapse – To cause to shrink, fall in, or fail.
collapsible – That may or can collapse.
colleague – An associate in professional employment.
collective – Consisting of a number of persons or objects considered as gathered into a mass, or sum.
collector – One who makes a collection, as of objects of art, books, or the like.
collegian – A college student.
collide – To meet and strike violently.
collier – One who works in a coal-mine.
collision – Violent contact.
colloquial – Pertaining or peculiar to common speech as distinguished from literary.
colloquialism – Form of speech used only or chiefly in conversation.
colloquy – Conversation.
collusion – A secret agreement for a wrongful purpose.
colossus – Any strikingly great person or object.
comely – Handsome.
comestible – Fit to be eaten.
comical – Funny.
commemorate – To serve as a remembrance of.
commentary – A series of illustrative or explanatory notes on any important work.
commingle – To blend.
commissariat – The department of an army charged with the provision of its food and water and daily needs.
commission – To empower.
commitment – The act or process of entrusting or consigning for safe-keeping.
committal – The act, fact, or result of committing, or the state of being
commodity – Something that is bought and sold.
commotion – A disturbance or violent agitation.
commute – To put something, especially something less severe, in place of.
comparable – Fit to be compared.
comparative – Relative.
comparison – Examination of two or more objects with reference to their likeness or unlikeness.
compensate – To remunerate.
competence – Adequate qualification or capacity.
competent – Qualified.
competitive – characterized by rivalry.
competitor – A rival.
complacence – Satisfaction with one’s acts or surroundings.
complacent – Pleased or satisfied with oneself.
complaisance – Politeness.
complaisant – Agreeable.
complement – To make complete.
complex – Complicated.
compliant – Yielding.
complicate – To make complex, difficult, or hard to deal with.
complication – An intermingling or combination of things or parts, especially in a perplexing manner.
complicity – Participation or partnership, as in wrong-doing or with a wrong-doer.
compliment – To address or gratify with expressions of delicate praise.
component – A constituent element or part.
comport – To conduct or behave (oneself).
composure – Calmness.
comprehensible – Intelligible.
comprehension – Ability to know.
comprehensive – Large in scope or content.
compress – To press together or into smaller space.
compressible – Capable of being pressed into smaller compass.
compression – Constraint, as by force or authority.
comprise – To consist of.
compulsion – Coercion.
compulsory – Forced.
compunction – Remorseful feeling.
compute – To ascertain by mathematical calculation.
concede – To surrender.
conceit – Self-flattering opinion.
conceive – To form an idea, mental image or thought of.
concerto – A musical composition.
concession – Anything granted or yielded, or admitted in response to a demand, petition, or claim.
conciliate – To obtain the friendship of.
conciliatory – Tending to reconcile.
conclusive – Sufficient to convince or decide.
concord – Harmony.
concordance – Harmony.
concur – To agree.
concurrence – Agreement.
concurrent – Occurring or acting together.
concussion – A violent shock to some organ by a fall or a sudden blow.
condensation – The act or process of making dense or denser.
condense – To abridge.
condescend – To come down voluntarily to equal terms with inferiors.
condolence – Expression of sympathy with a person in pain, sorrow, or misfortune.
conduce – To bring about.
conducive – Contributing to an end.
conductible – Capable of being conducted or transmitted.
conduit – A means for conducting something, particularly a tube, pipe, or passageway for a fluid.
confectionery – The candy collectively that a confectioner makes or sells, as candy.
confederacy – A number of states or persons in compact or league with each other, as for mutual aid.
confederate – One who is united with others in a league, compact, or agreement.
confer – To bestow.
conferee – A person with whom another confers.
confessor – A spiritual advisor.
confidant – One to whom secrets are entrusted.
confide – To reveal in trust or confidence.
confidence – The state or feeling of trust in or reliance upon another.
confident – Assured.
confinement – Restriction within limits or boundaries.
confiscate – To appropriate (private property) as forfeited to the public use or treasury.
conflagration – A great fire, as of many buildings, a forest, or the like.
confluence – The place where streams meet.
confluent – A stream that unites with another.
conformance – The act or state or conforming.
conformable – Harmonious.
conformation – General structure, form, or outline.
conformity – Correspondence in form, manner, or use.
confront – To encounter, as difficulties or obstacles.
congeal – To coagulate.
congenial – Having kindred character or tastes.
congest – To collect into a mass.
congregate – To bring together into a crowd.
coniferous – Cone-bearing trees.
conjecture – A guess.
conjoin – To unite.
conjugal – Pertaining to marriage, marital rights, or married persons.
conjugate – Joined together in pairs.
conjugation – The state or condition of being joined together.
conjunction – The state of being joined together, or the things so joined.
connive – To be in collusion.
connoisseur – A critical judge of art, especially one with thorough knowledge and sound judgment of art.
connote – To mean; signify.
connubial – Pertaining to marriage or matrimony.
conquer – To overcome by force.
consanguineous – Descended from the same parent or ancestor.
conscience – The faculty in man by which he distinguishes between right and wrong in character and conduct.
conscientious – Governed by moral standard.
conscious – Aware that one lives, feels, and thinks.
conscript – To force into military service.
consecrate – To set apart as sacred.
consecutive – Following in uninterrupted succession.
consensus – A collective unanimous opinion of a number of persons.
conservatism – Tendency to adhere to the existing order of things.
conservative – Adhering to the existing order of things.
conservatory – An institution for instruction and training in music and declamation.
consign – To entrust.
consignee – A person to whom goods or other property has been entrusted.
consignor – One who entrusts.
consistency – A state of permanence.
console – To comfort.
consolidate – To combine into one body or system.
consonance – The state or quality of being in accord with.
consonant – Being in agreement or harmony with.
consort – A companion or associate.
conspicuous – Clearly visible.
conspirator – One who agrees with others to cooperate in accomplishing some unlawful purpose.
conspire – To plot.
constable – An officer whose duty is to maintain the peace.
constellation – An arbitrary assemblage or group of stars.
consternation – Panic.
constituency – The inhabitants or voters in a district represented in a legislative body.
constituent – One who has the right to vote at an election.
constrict – To bind.
consul – An officer appointed to reside in a foreign city, chiefly to represent his country.
consulate – The place in which a consul transacts official business.
consummate – To bring to completion.
consumption – Gradual destruction, as by burning, eating, etc., or by using up, wearing out, etc.
consumptive – Designed for gradual destruction.
contagion – The communication of disease from person to person.
contagious – Transmitting disease.
contaminate – To pollute.
contemplate – To consider thoughtfully.
contemporaneous – Living, occurring, or existing at the same time.
contemporary – Living or existing at the same time.
contemptible – Worthy of scorn or disdain.
contemptuous – Disdainful.
contender – One who exerts oneself in opposition or rivalry.
contiguity – Proximity.
contiguous – Touching or joining at the edge or boundary.
continence – Self-restraint with respect to desires, appetites, and passion.
contingency – Possibility of happening.
contingent – Not predictable.
continuance – Permanence.
continuation – Prolongation.
continuity – Uninterrupted connection in space, time, operation, or development.
continuous – Connected, extended, or prolonged without separation or interruption of sequence.
contort – To twist into a misshapen form.
contraband – Trade forbidden by law or treaty.
contradiction – The assertion of the opposite of that which has been said.
contradictory – Inconsistent with itself.
contraposition – A placing opposite.
contravene – To prevent or obstruct the operation of.
contribution – The act of giving for a common purpose.
contributor – One who gives or furnishes, in common with others, for a common purpose.
contrite – Broken in spirit because of a sense of sin.
contrivance – The act planning, devising, inventing, or adapting something to or for a special purpose.
contrive – To manage or carry through by some device or scheme.
control – To exercise a directing, restraining, or governing influence over.
controller – One who or that which regulates or directs.
contumacious – Rebellious.
contumacy – Contemptuous disregard of the requirements of rightful authority.
contuse – To bruise by a blow, either with or without the breaking of the skin.
contusion – A bruise.
convalesce – To recover after a sickness.
convalescence – The state of progressive restoration to health and strength after the cessation of disease.
convalescent – Recovering health after sickness.
convene – To summon or cause to assemble.
convenience – Fitness, as of time or place.
converge – To cause to incline and approach nearer together.
convergent – Tending to one point.
conversant – Thoroughly informed.
conversion – Change from one state or position to another, or from one form to another.
convertible – Interchangeable.
convex – Curving like the segment of the globe or of the surface of a circle.
conveyance – That by which anything is transported.
convivial – Devoted to feasting, or to good-fellowship in eating or drinking.
convolution – A winding motion.
convolve – To move with a circling or winding motion.
convoy – A protecting force accompanying property in course of transportation.
convulse – To cause spasms in.
convulsion – A violent and abnormal muscular contraction of the body.
copious – Plenteous.
coquette – A flirt.
cornice – An ornamental molding running round the walls of a room close to the ceiling.
cornucopia – The horn of plenty, symbolizing peace and prosperity.
corollary – A proposition following so obviously from another that it requires little demonstration.
coronation – The act or ceremony of crowning a monarch.
coronet – Inferior crown denoting, according to its form, various degrees of noble rank less than sovereign.
corporal – Belonging or relating to the body as opposed to the mind.
corporate – Belonging to a corporation.
corporeal – Of a material nature; physical.
corps – A number or body of persons in some way associated or acting together.
corpse – A dead body.
corpulent – Obese.
corpuscle – A minute particle of matter.
correlate – To put in some relation of connection or correspondence.
correlative – Mutually involving or implying one another.
corrigible – Capable of reformation.
corroborate – To strengthen, as proof or conviction.
corroboration – Confirmation.
corrode – To ruin or destroy little by little.
corrosion – Gradual decay by crumbling or surface disintegration.
corrosive – That which causes gradual decay by crumbling or surface disintegration.
corruptible – Open to bribery.
corruption – Loss of purity or integrity.
cosmetic – Pertaining to the art of beautifying, especially the complexion.
cosmic – Pertaining to the universe.
cosmogony – A doctrine of creation or of the origin of the universe.
cosmography – The science that describes the universe, including astronomy, geography, and geology.
cosmology – The general science of the universe.
cosmopolitan – Common to all the world.
cosmopolitanism – A cosmopolitan character.
cosmos – The world or universe considered as a system, perfect in order and arrangement.
counter-claim – A cross-demand alleged by a defendant in his favor against the plaintiff.
counteract – To act in opposition to.
counterbalance – To oppose with an equal force.
countercharge – To accuse in return.
counterfeit – Made to resemble something else.
counterpart – Something taken with another for the completion of either.
countervail – To offset.
counting-house – A house or office used for transacting business, bookkeeping, correspondence, etc.
countryman – A rustic.
courageous – Brave.
course – Line of motion or direction.
courser – A fleet and spirited horse.
courtesy – Politeness originating in kindness and exercised habitually.
covenant – An agreement entered into by two or more persons or parties.
covert – Concealed, especially for an evil purpose.
covey – A flock of quails or partridges.
cower – To crouch down tremblingly, as through fear or shame.
coxswain – One who steers a rowboat, or one who has charge of a ship’s boat and its crew under an officer.
crag – A rugged, rocky projection on a cliff or ledge.
cranium – The skull of an animal, especially that part enclosing the brain.
crass – Coarse or thick in nature or structure, as opposed to thin or fine.
craving – A vehement desire.
creak – A sharp, harsh, squeaking sound.
creamery – A butter-making establishment.
creamy – Resembling or containing cream.
credence – Belief.
credible – Believable.
credulous – Easily deceived.
creed – A formal summary of fundamental points of religious belief.
crematory – A place for cremating dead bodies.
crevasse – A deep crack or fissure in the ice of a glacier.
crevice – A small fissure, as between two contiguous surfaces.
criterion – A standard by which to determine the correctness of a judgment or conclusion.
critique – A criticism or critical review.
crockery – Earthenware made from baked clay.
crucible – A trying and purifying test or agency.
crusade – Any concerted movement, vigorously prosecuted, in behalf of an idea or principle.
crustacean – Pertaining to a division of arthropods, containing lobsters, crabs, crawfish, etc.
crustaceous – Having a crust-like shell.
cryptogram – Anything written in characters that are secret or so arranged as to have hidden meaning.
crystallize – To bring together or give fixed shape to.
cudgel – A short thick stick used as a club.
culinary – Of or pertaining to cooking or the kitchen.
cull – To pick or sort out from the rest.
culpable – Guilty.
culprit – A guilty person.
culvert – Any artificial covered channel for the passage of water through a bank or under a road, canal.
cupidity – Avarice.
curable – Capable of being remedied or corrected.
curator – A person having charge as of a library or museum.
curio – A piece of bric-a-brac.
cursive – Writing in which the letters are joined together.
cursory – Rapid and superficial.
curt – Concise, compressed, and abrupt in act or expression.
curtail – To cut off or cut short.
curtsy – A downward movement of the body by bending the knees.
cycloid – Like a circle.
cygnet – A young swan.
cynical – Exhibiting moral skepticism.
cynicism – Contempt for the opinions of others and of what others value.
cynosure – That to which general interest or attention is directed.