/ Dictionary / Index E extant: Meaning and Definition of Find definitions for: ex•tant Pronunciation: (ek'stunt, ik-stant'), [key] — adj. in existence; still existing; not destroyed or lost: There are only three extant copies of the document. standing out; protruding. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: extant (Thesaurus) ext. extd. Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language