/ Dictionary / Index A Anti-Mason: Meaning and Definition of Find definitions for: An•ti-Ma•son Pronunciation: (an"tē-mā'sun, an"tī-), [key] — n. U.S. Hist. a member of the Anti-Masonic party or a supporter of its principles. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. antimanic Anti-Masonic party Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language