/ Dictionary / Index G gilgai: Meaning and Definition of Find definitions for: gil•gai Pronunciation: (gil'gī), [key] — n. Australian. a small gully or ditch. a small pond or pool of water. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Giles Gilgal Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language