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

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

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.

Dec 14, 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 …

There are 31 meanings listed in OED's entry for the verb swear, two of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Dec 27, 2025 · A new study in the journal 'American Psychologist' links swearing to "state disinhibition," a psychological state where you're less likely to hold back.

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.

3 days ago · The impulse to swear begins far below the level of conscious speech. Most everyday language originates in the cerebral cortex, where ideas are shaped into words. Swearing, …