/ Dictionary / Index R register ton: Meaning and Definition of Find definitions for: reg'ister ton". Pronunciation: [key] See under (def. 6). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. register of wills register tonnage Related Content Daily Word Quiz: reiterate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language