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Definition of “oath” - English Dictionary

"oath" in American English

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oathnoun [C]

 us   /oʊθ/
  • oath noun [C] (PROMISE)

a serious promise that you will tell the truth or that you will do what you have said: Presidents take an oath to uphold the Constitution.
  • oath noun [C] (RUDE WORD)

literature dated an offensive word, esp. one that uses a name for God
(Definition of oath from the Cambridge Academic Content Dictionary © Cambridge University Press)







"oath" in British English

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oathnoun [C]

uk   /əʊθ/  us   /oʊθ/
(Definition of oath from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

"oath" in Business English

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oathnoun [C]

uk   us   /əʊθ/
an official promise, especially when you promise to tell the truth in court: The witness took the oath. A psychologist cannot be compelled to attend a disciplinary hearing or to swear on oath.
on/under oath
LAW having officially promised to tell the truth in court: She was called to testify under oath before a congressional panel.
take the oath of office
GOVERNMENT to accept a job in a government, especially in the US, in a ceremony which requires you to make an official promise to serve your country: The newly-elected Democrat took the oath of office in the Senate yesterday and quickly introduced his first bill.
(Definition of oath from the Cambridge Business English Dictionary © Cambridge University Press)
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“oath” in Business English

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