Breadcrumb Home > Dictionary > Index S SM: Meaning and Definition of Find definitions for: SM Pronunciation: [key] service mark. Sm Pronunciation: [key] — Symbol, Chem. samarium. sm. Pronunciation: [key] small. S-M Pronunciation: [key] sadomasochism. sadomasochistic. S.M. Pronunciation: [key] Master of Science. sergeant major. State Militia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sm (Thesaurus) slype SMA TrendingHere are the facts and trivia that people are buzzing about. The Book of Philippians: Summary Current Events This Week: May 2023 Preamble of the United Nations Charter Queen Victoria Books of the Bible: New Testament Books in Order The 88 Recognized Constellations ✖ Related Content Daily Word Quiz: primafacie Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language