Oxford Dictionary English

    false friend

    noun
    noun
    BrE BrE//ˌfɔːls ˈfrend//
    ; NAmE NAmE//ˌfɔːls ˈfrend//
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  1. 1a person who seems to be your friend, but who is not loyal and cannot be trusted
  2. 2a word in a foreign language that looks similar to a word in your own language, but has a different meaning The English word ‘sensible’ and the French word ‘sensible’ are false friends.
    3.  Word Origintranslating French faux ami.
See false friend in the Oxford Advanced American Dictionary
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