/ Dictionary / Index S semifinalist: Meaning and Definition of Find definitions for: sem•i•fi•nal•ist Pronunciation: (sem"ē-fīn'l-ist, sem"ī-), [key] — n. Sports. a participant or one qualified to participate in a semifinal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: semifinalist (Thesaurus) semifinal semifinished Related Content Daily Word Quiz: menagerie Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language