/ Dictionary / Index S Sfc: Meaning and Definition of Find definitions for: Sfc Pronunciation: [key] — Mil. Mil. sergeant first class. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sfax sferics Related Content Daily Word Quiz: stellar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language