English Lexicon

Sworn Enemy

/swɔrn ˈɛnəmi/
nounCEFR B2 (Upper)Top #1500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A person with whom one has a longstanding and intense animosity, often formalized by a declaration of hostility.

    "After years of rivalry, they became sworn enemies, vowing never to reconcile."
  2. 2

    An adversary with whom one has a personal vendetta or deep-seated hatred.

    "In the world of politics, he was seen as her sworn enemy, always opposing her initiatives."

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Synonyms (3)
Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The term 'sworn enemy' combines 'sworn', derived from the Old English 'sweorn', meaning to take an oath, and 'enemy', from the Latin 'inimicus', meaning hostile or adversarial. The phrase has evolved to denote a person with whom one has a deep-seated animosity, often formalized by a declaration of enmity.

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