/ Dictionary / Index C cession: Meaning and Definition of Find definitions for: ces•sion Pronunciation: (sesh'un), [key] — n. act of ceding, as by treaty. something that is ceded, as territory. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cession (Thesaurus) cessative cessionary Related Content Daily Word Quiz: verdant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language