/ Dictionary / Index T toponym: Meaning and Definition of Find definitions for: top•o•nym Pronunciation: (top'u-nim), [key] — n. a place name. a name derived from the name of a place. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: toponym (Thesaurus) topology toponymy Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language