/ Dictionary / Index D depone: Meaning and Definition of Find definitions for: de•pone Pronunciation: (di-pōn'), [key] — -poned, -pon•ing. to testify under oath; depose. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: depone (Thesaurus) depolymerize deponent Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language