/ Dictionary / Index O oilpaper: Meaning and Definition of Find definitions for: oil•pa•per Pronunciation: (oil'pā"pur), [key] — n. a paper made waterproof and translucent by treatment with oil. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: oilpaper (Thesaurus) oil pan oil patch Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language