/ Dictionary / Index O oilcup: Meaning and Definition of Find definitions for: oil•cup Pronunciation: (oil'kup"), [key] — n. a closed cup or can supplying lubricant to a bearing or bearings. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. oil color Oildale Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language