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
refectorya dining hall (as in a monastery or college)
decimateto select by lot and kill every tenth man of
maudlindrunk enough to be emotionally silly
heterodoxcontrary to or different from an acknowledged standard, a traditional form, or an established religion : unorthodox
obduratestubbornly persistent in wrongdoing
impiousnot pious : lacking in reverence or proper respect (as for God or one's parents) : irreverent
ultimatuma final proposition, condition, or demand
imperturbablemarked by extreme calm, impassivity, and steadiness : serene
espionagethe practice of spying or using spies to obtain information about the plans and activities especially of a foreign government or a competing company
gruelingtrying or taxing to the point of exhaustion : punishing