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 oath by: He …

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.

Profanity is often depicted in images by grawlixes, which substitute symbols for words. Profanity, also known as swearing, cursing, or cussing, is the usage of notionally offensive words for a variety of …

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 strongly assert. …

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.

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

swear definition: declare something is true with emphasis. Check meanings, examples, usage tips, pronunciation, domains, and related words. Discover expressions like "swear at", "swear box", …

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.