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Definition of swear verb from the Oxford Advanced Learner's Dictionary

swear

verb
 
/sweə(r)/
 
/swer/
Verb Forms
present simple I / you / we / they swear
 
/sweə(r)/
 
/swer/
he / she / it swears
 
/sweəz/
 
/swerz/
past simple swore
 
/swɔː(r)/
 
/swɔːr/
past participle sworn
 
/swɔːn/
 
/swɔːrn/
-ing form swearing
 
/ˈsweərɪŋ/
 
/ˈswerɪŋ/
Idioms Phrasal Verbs
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  1. [intransitive] to use rude or offensive language, usually because you are angry
    • She fell over and swore loudly.
    • I don't like to hear children swearing.
    • He heard her swear under her breath.
    • She was shouting, swearing, and acting in an aggressive manner towards the staff
    • swear at somebody/something Why did you let him swear at you like that?
    Oxford Collocations Dictionaryadverb
    • loudly
    • quietly
    • silently
    verb + swear
    • hear somebody
    preposition
    • at
    See full entry
  2. [transitive, no passive] to make a serious promise to do something synonym vow
    • swear something He swore revenge on the man who had killed his father.
    • swear (that)… I solemnly swear (that) it will never happen again.
    • I swear (that) I’ll never leave you.
    • He swore solemnly that he would never hit her again. ‘That’ is usually left out, especially in speech.
    • swear to do something She made him swear not to tell anyone.
    • He left, swearing never to return.
    Oxford Collocations Dictionaryadverb
    • solemnly
    • on oath
    • under oath
    verb + swear
    • be prepared to
    • make somebody
    preposition
    • by
    • on
    • to
    phrases
    • be sworn into office
    • swear somebody to secrecy
    • swear somebody to silence
    See full entry
  3. [transitive] to promise that you are telling the truth
    • swear (that)… She swore (that) she’d never seen him before.
    • I could have sworn (= I am sure) I heard the phone ring.
    • swear to somebody/on something (that)… I swear to God I had nothing to do with it.
    Extra Examples
    • I think I put the keys back in the drawer, but I couldn't swear to it.
    • I swear to you, I don't know anything.
    • He swears up and down that he trusts me.
    Oxford Collocations Dictionaryadverb
    • solemnly
    • on oath
    • under oath
    verb + swear
    • be prepared to
    • make somebody
    preposition
    • by
    • on
    • to
    phrases
    • be sworn into office
    • swear somebody to secrecy
    • swear somebody to silence
    See full entry
  4. [intransitive, transitive] to make a public or official promise, especially in court
    • swear on something Witnesses were required to swear on the Bible.
    • swear that… Are you willing to stand up in court and swear that you don't recognize him?
    • swear to do something Remember, you have sworn to tell the truth.
    • swear something Barons had to swear an oath of allegiance to the king.
    • I swear by Almighty God to tell the truth.
    • They refused to swear allegiance to the new ruler.
    Oxford Collocations Dictionaryadverb
    • solemnly
    • on oath
    • under oath
    verb + swear
    • be prepared to
    • make somebody
    preposition
    • by
    • on
    • to
    phrases
    • be sworn into office
    • swear somebody to secrecy
    • swear somebody to silence
    See full entry
  5. [transitive] swear somebody to secrecy/silence to make somebody promise not to tell something to anyone
    • Everyone was sworn to secrecy about what had happened.
    see also sworn
    Oxford Collocations Dictionaryadverb
    • solemnly
    • on oath
    • under oath
    verb + swear
    • be prepared to
    • make somebody
    preposition
    • by
    • on
    • to
    phrases
    • be sworn into office
    • swear somebody to secrecy
    • swear somebody to silence
    See full entry
  6. Word OriginOld English swerian of Germanic origin; related to Dutch zweren, German schwören, also to answer.
Idioms
swear blind
  1. (informal) to say that something is definitely true
    • He swore blind that he’d already paid back the money he owed me.
    • He swore blind that you knew all about it.
swear like a trooper
  1. (old-fashioned, British English) to often use very rude or offensive language
See swear in the Oxford Advanced American Dictionary
hat-trick
noun
 
 
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