| A | B |
| collaborate | work together |
| collage | work of art put together from fragments |
| collate | examine in order to verify authenticity; arrange in order |
| collateral | security given for loan |
| collusion | conspiring in a fraudulent scheme |
| colossal | huge |
| comatose | in a coma; extremely sleepy |
| comely | attractive; agreeable |
| comeuppance | rebuke; deserts |
| commandeer | to draft for military purposes; to take for public use |
| commensurate | equal in extent |
| commiserate | feel or express pity or sympathy for |
| commodious | spacious and comfortable |
| communal | held in common; of a group of people |
| compact | agreement; contract |
| compact | tightly packed; firm; brief |
| comparable | similar |
| compatible | harmonious; in harmony with |
| compelling | overpowering; irresistible in effect |
| compensatory | making up for; repaying |
| complaisant | trying to please; obliging |
| complement | complete; consummate; make perfect |
| compliant | yielding |
| complicity | participation; involvement |
| component | element; ingredient |
| compound | combine; constitute |
| compress | close; squeeze; contract |
| comprise | include; consist of |
| compromise | adjust or settle by making mutual concessions; endanger the interest or reputation of |
| compunction | remorse |
| compute | reckon; calculate |
| concave | hollow |
| conceit | vanity or self-love |
| concentric | having a common center |
| conception | beginning; forming of an idea |
| concerted | mutually agreed on; done together |
| concession | an act of yielding |
| conclusive | decisive; ending all debate |
| concoct | prepare by combining; make up in concert |
| concomitant | that which accompanies |
| concord | harmony; agreement between people or things |
| concurrent | happening at the smae time |
| condemn | censure; sentence; force or limit to a particular state |
| condense | make more compact or dense; shorten or abridge |
| condescent | act conscious of descending to a lower level; patronize |
| condiments | seasonings; spices |
| condole | express sympathetic sorrow |
| conducive | contributive; tending to |
| conduit | aqueduct; passageway for fluids |
| confidant | trusted friend |
| confine | shut in; restrict |
| confirm | corroborate;verify; support |
| confiscate | seize; commandeer |
| conformity | harmony; agreement |
| confrontation | act of facing someone or something |
| congeal | freeze; coagulate |
| congenial | pleasant; friendly |
| congenital | existing at birth |