/ Dictionary / Index D displacement ton: Meaning and Definition of Find definitions for: displace'ment ton" Pronunciation: [key] — Naut. Naut. a unit for measuring the displacement of a vessel, equal to a long ton of 2240 lb. (1016 kg) or 35 cu. ft. (1 cu. m) of seawater. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. displacement hull displacement tonnage Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language