/ Dictionary / Index S seizin: Meaning and Definition of Find definitions for: sei•zin Pronunciation: (sē'zin), [key] — n. Law. (originally) possession of either land or chattel. the kind of possession or right to possession characteristic of estates of freehold. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. seize seizing Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language