Breadcrumb Home > Thesaurus > S Synonyms of sm Find synonyms for: Noun 1. samarium, Sm, atomic number 62, metallic element, metal usage: a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite 2. Master of Science, MS, SM, MSc, master's degree usage: a master's degree in science WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of sm (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: irascible Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language