intransitive verb
Definition: To use offensive language or to make a serious promise or declaration, often involving an oath.
Example: He swears to tell the truth in court.
noun
Definition: A word or phrase that is considered offensive or vulgar, often used to express strong emotions.
Example: He used a swear during the argument that shocked everyone.
transitive verb
Definition: To make a serious promise or declaration, often by calling on a sacred person or thing, or to use offensive language.
Example: He swore to tell the truth in court.