/ Dictionary / Index A anti: Meaning and Definition of Find definitions for: an•ti Pronunciation: (an'tī, an'tē), [key] — pl. -tis. a person who is opposed to a particular practice, party, policy, action, etc. anti- Pronunciation: [key] a prefix meaning “against,” “opposite of,” “antiparticle of,” used in the formation of compound words (anticline); used freely in combination with elements of any origin (antibody; antifreeze; antiknock; antilepton). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: anti (Thesaurus) anthurium antiabortion Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language