/ Dictionary / Index A adsum*: Meaning and Definition of Find definitions for: ad•sum Pronunciation: (äd'soom Eng. ad'sum), [key] — interj. Latin. I am present. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. adsuki bean ADTS Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language