GRE Word List

COG

a tooth on the rim of a wheel or gear

The meaning of the word cog is a tooth on the rim of a wheel or gear.

Random words

WordMeaning
fretto eat or gnaw into : corrode
mockto treat with contempt or ridicule : deride
rigiddeficient in or devoid of flexibility
sophomoricconceited and overconfident of knowledge but poorly informed and immature
invocationthe act or process of petitioning for help or support
primaryfirst in order of time or development : primitive
raila bar extending from one post or support to another and serving as a guard or barrier
concavehollowed or rounded inward like the inside of a bowl
jadedfatigued by overwork : exhausted
piquantengagingly provocative