/ Dictionary / Index G gee whiz: Meaning and Definition of Find definitions for: gee' whiz' Pronunciation: [key] — Informal. Informal. gee. gee-whiz Pronunciation: ( jē'hwiz', -wiz'), [key] — adj. Informal. arousing or characterized by surprise, wonder, or triumphant achievement: a gee-whiz technology; a gee-whiz reaction to the sight of the Grand Canyon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gee-string Geez 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