/ Dictionary / Index G gross tonnage: Meaning and Definition of Find definitions for: gross' ton'nage Pronunciation: [key] — Naut. Naut. the total volume of a vessel, expressed in units of 100 cubic feetwith certain open structures, deckhouses, tanks, etc., exempted. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gross ton grossularite Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language