/ Dictionary / Index O oversupply: Meaning and Definition of Find definitions for: o•ver•sup•ply Pronunciation: (n.ō'vur-su-plī"v.ō"vur-su-plī'), [key] — n., pl. v., -plies, -plied, -ply•ing. —n. an excessive supply. —v.t. to supply in excess. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: oversupply (Thesaurus) oversubscribe overswing 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