/ Dictionary / Index G gazillion: Meaning and Definition of Find definitions for: ga•zil•lion Pronunciation: (gu-zil'yun), [key] an extremely large, indeterminate number. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: gazillion (Thesaurus) Gaziantep gazogene Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language