/ Dictionary / Index O Oil City: Meaning and Definition of Find definitions for: Oil' Cit'y Pronunciation: [key] a city in NW Pennsylvania, on the Allegheny River. 13,881. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. oilcan oilcloth Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language