gre词汇：2012新GRE阅读词汇笔记（45）

coeval

living at the same time as; existing during the same period of time; contemporary; of the same age

cog

tooth projecting from a wheel

cogent

convincing

cogitate

think over; ponder

cognate

having a common origin; related linguistically; allied by blood; similar or akin in nature; Ex. cognate languages; N.

cognitive

having to do with knowing or perceiving related to the mental processes; N. cognition: the mental process of knowing

cognizance

knowledge; ADJ. cognizant; having knowledge; aware

cohabit

live together

cohere

stick together

cohesion

tendency to keep together

cohorts

group of people who share some common quality; armed band; a group of between 300 and 600 soldiers under one commander (in the ancient Rome)

coiffure

hairstyle

coin

make coins; invent or fabricate (a word or phrase); N. coinage: word or phrase recently invented

coincidence

the chance occurrence, at the same time, of two or more seemingly connected events; V. coincide: happen at the same time; be in agreement; CF. coincident; CF. coincidental

colander

utensil with perforated bottom used for straining

collaborate

work together; cooperate treasonably with the enemy

collage

work of art put together from fragments