/ Dictionary / Index P Pittsburgh: Meaning and Definition of Find definitions for: Pitts•burgh Pronunciation: (pits'bûrg), [key] — n. a port in SW Pennsylvania, at the confluence of the Allegheny and Monongahela rivers that forms the Ohio River: steel industry. 423,938. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pittsburgh (Thesaurus) Pittsburg Pittsburg Landing Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language