swear

/sweə/
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swear

I swear to tell the truth, the whole truth, and nothing but the truth.

Definition
  1. Verb:
    • To make a solemn declaration or promise, often invoking a deity or something sacred as a witness: To state something is true or to promise to do something, with the force of an oath.
    • To use offensive, profane, or obscene language: To curse or utter vulgar words, often in anger or frustration.
    • To state or affirm something very earnestly or emphatically: To declare something forcefully as true.
Usage and Examples
  • Verb (To make a solemn oath):

    • I swear to tell the truth, the whole truth, and nothing but the truth.
    • She swore allegiance to the flag.
    • He swore he would never be late again.
  • Verb (To use profane language):

    • He swore loudly when he hit his thumb with the hammer.
    • The angry driver swore at the cyclist.
    • Please don't swear in front of the children.
  • Verb (To affirm emphatically):

    • I could have sworn I left my keys on the table.
    • She swears by the effectiveness of this old remedy.
Advanced Usage and Nuances
  • "Swear by (someone/something)": To have great confidence in or trust something.
    • My grandmother swears by honey and lemon for a sore throat.
  • "Swear in": To administer an oath of office to someone.
    • The Chief Justice will swear in the new president.
  • "Swear off (something)": To make a promise to oneself to stop doing or using something.
    • After the illness, he swore off alcohol and cigarettes.
Variants and Related Words
  • Sworn (adjective): Bound by or as if by an oath.
    • A sworn statement; sworn enemies.
  • Swear word (noun): A profane or obscene word.
    • The movie was full of swear words.
Synonyms
  • Vow, pledge, promise (for the oath-related meaning).
  • Curse, blaspheme, cuss (for the profanity-related meaning).
  • Assert, declare, attest (for the affirmation-related meaning).
Phrasal Verbs
  • Swear by: To have great confidence in something.
    • I swear by this brand of boots for hiking.
  • Swear in: To induct into office by administration of an oath.
    • The mayor was sworn in yesterday.
  • Swear off: To promise to give up something.
    • She swore off junk food for the new year.
  • Swear to: To affirm something strongly.
    • I can't swear to the exact time, but it was around midnight.
Idioms and Common Phrases
  • "Swear on a stack of Bibles": To swear very earnestly.
    • He swore on a stack of Bibles that he was innocent.
  • "Swear like a sailor/trooper": To curse frequently and fluently.
    • He's a nice guy, but he swears like a sailor when he's angry.
  • "Swear blind": To insist something is true despite evidence to the contrary.
    • He swore blind he had returned the book, but it was on his shelf.
swear

I swear to tell the truth, the whole truth, and nothing but the truth.

Verb
  1. have confidence or faith in
    • We can trust in God
    • Rely on your friends
    • bank on your good education
    • I swear by my grandmother's recipes
  2. make a deposition; declare under oath
  3. promise solemnly; take an oath
  4. to declare or affirm solemnly and formally as true
    • Before God I swear I am innocent
  5. utter obscenities or profanities
    • The drunken men were cursing loudly in the street