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Entry 2 senses · 2 variants Webster, 1913

Anti

/ăn'-tēˌ/ · An·ti · IPA /ˈæn.taɪ/
01 A prefix meaning against, opposite or opposed to, contrary, or in place of; -- used in composition in many English words. It is often short…
  1. 1.
    A prefix meaning against, opposite or opposed to, contrary, or in place of; -- used in composition in many English words. It is often shortened to ant-; as, antacid, antarctic.
02 n. pl. The two projecting feathered angles of the forehead of some birds; the frontal points.
  1. 1.
    The two projecting feathered angles of the forehead of some birds; the frontal points.(Zool.)