Meaning of “anti” in the English Dictionary

"anti" in British English

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antiadjective, preposition

uk /ˈæn.ti/ us /ˈæn.t̬i/ informal

antinoun [ C ]

uk /ˈæn.ti/ us /ˈæn.t̬i/ plural antis informal


uk /æn.ti-/ us /æn.t̬i/ /æn.taɪ-/

opposed to or against


opposite of


  • They went on an anti-war demonstration last weekend.
  • There are anti-discrimination laws nowadays to prevent that kind of thing from happening.
  • He wanted to abolish slavery and introduced the first anti-slavery bill to Parliament.
  • Our school has a very good anti-bullying strategy.
  • The hunt was stopped by a group of anti-hunting protesters.

(Definition of “anti” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"anti-" in American English

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us /ˌæn·ti, ˌæn·tɑɪ/

opposed to or against:


(Definition of “anti-” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"anti-" in Business English

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uk /ænti-/ us /æntɑɪ/

opposed to or against something:

Even anti-regulatory governments can no longer entirely ignore environmental violations.
an anti-establishment, rebellious ideology
an antiwar demonstration

(Definition of “anti-” from the Cambridge Business English Dictionary © Cambridge University Press)