Breadcrumb Home > Thesaurus > M Synonyms of mls Find synonyms for: Noun 1. Master of Library Science, MLS, master's degree usage: a master's degree in library science Noun 1. Master of Library Science, MLS, master's degree usage: a metric unit of volume equal to one thousandth of a liter WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of mls (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: hagiography Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language