/ Dictionary / Index O oillet: Meaning and Definition of Find definitions for: oil•let Pronunciation: (oi'lit), [key] — n. eyelet (def. 5). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. oil-immersion objective oillionaire Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language