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swear - definition and synonyms


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verb swear pronunciation in British English /sweə(r)/
Word Forms
present tense
present participleswearing
past tenseswore
past participlesworn
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  1. 1
    [intransitive] to use words that are deliberately offensive, for example because you are angry with someone
    That’s the first time I’ve ever heard him swear.
    swear at: She was shouting and swearing at everyone.
    swear profusely: I hammered my thumb and then swore profusely.
  2. 2
    [transitive] to make a sincere statement that you are telling the truth
    I’ve never seen him before – I swear!
    swear (that): She swears that this is the man who attacked her.
  3. 3
    [transitive] to make a promise to do something
    swear (that): You swore that you would never see her again.
    swear to do something: He swore to stay out of politics when he retired.
    swear vengeance against/on someone (=promise to punish them): Marshall swore vengeance against his brother’s killers.
    1. a.
      [intransitive/transitive] to make a formal promise to be loyal or to tell the truth
      Members have to swear an oath of secrecy.
      swear (your) allegiance to someone (=promise to be loyal): They have to swear allegiance to the Queen.



a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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