The meaning of SWEAR is to utter or take solemnly (an oath). How to use swear in a sentence.

SWEAR definition: 1. to use words that are rude or offensive as a way of emphasizing what you mean or as a way of…. Learn more.

1. To have great reliance on or confidence in: He swears by his personal physician. 2. To have reliable knowledge of; be sure of: I think she left early, but I couldn't swear by it. 3. To take an …

Swear definition: to make a solemn declaration or affirmation by some sacred being or object, as a deity or the Bible.. See examples of SWEAR used in a sentence.

If you say that you swear that something is true or that you can swear to it, you are saying very firmly that it is true.

Definition of swear verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

To give evidence on oath; as, to swear to the truth of a statement; he swore against the prisoner.

swear off, to promise or resolve to give up something, esp. intoxicating beverages. Law swear out, to secure (a warrant for arrest) by making an accusation under oath.

Oct 13, 2025 · The witness swore that the person she had seen running out of the bank was a foot shorter than the accused. (transitive) To promise intensely that something is true; to …

When you take an oath about something, you swear to it, affirming its truth. Ironically, if you utter an oath, such as a curse word or obscenity, you also swear.