/ Dictionary / Index B British gallon: Meaning and Definition of Find definitions for: Brit'ish gal'lon Pronunciation: [key] — Chiefly Brit. Chiefly Brit. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Britisher British Guiana Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language