/ Dictionary / Index O Oswego: Meaning and Definition of Find definitions for: Os•we•go Pronunciation: (os-wē'gō), [key] — n. a town in NW Oregon. 22,868. a port in W New York, on Lake Ontario. 19,793. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Oswald Oswego tea Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language