/ Dictionary / Index S secessionist: Meaning and Definition of Find definitions for: se•ces•sion•ist Pronunciation: (si-sesh'u-nist), [key] — n. a person who secedes, advocates secession, or claims secession as a constitutional right. —adj. of or pertaining to secession or secessionists. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: secessionist (Thesaurus) secession sech Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language