/ Dictionary / Index S St. Petersburg: Meaning and Definition of Find definitions for: St. Petersburg Pronunciation: [key] Formerly,(1924-91);(1914-24). a seaport in NW Russian Federation in Europe, in the Gulf of Finland, off the Baltic Sea: founded 1703 by Peter the Great; capital of the Russian Empire (1712-1917). 5,020,000. a city in W Florida, on Tampa Bay: 238,629. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. St. Peters St. Peter's Square Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language