/ Dictionary / Index G gizmo: Meaning and Definition of Find definitions for: giz•mo Pronunciation: (giz'mō), [key] — pl. -mos. gismo. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: gizmo (Thesaurus) Giza gizzard Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language