/ Dictionary / Index G gnamma hole: Meaning and Definition of Find definitions for: gnam'ma hole" Pronunciation: (nam'u), [key] — Australian. Australian. a hollow in bare rock, narrow at the opening and wider at the bottom, in which water collects. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. G.N. gnar Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language