Pronunciation

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  • (UK) IPA (key): /ɪf ən(d) ˈəʊn.lɪ ɪf/
  • (US) IPA (key): /ɪf ən(d) ˈoʊn.li ɪf/

Conjunction

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Conjunction
iff

  1. (mathematics) Iff is the short form of if and only if