Definition of "oath" in English

noun

1. A solemn pledge or promise that invokes a deity, a ruler, or another entity (not necessarily present) to attest the truth of a statement or sincerity of one's desire to fulfill a contract or promise.

   • take an oath
   • swear an oath
   • break one's oath

2. A statement or promise which is strengthened (affirmed) by such a pledge.

   • After taking the oath of office, she became the country's forty-third premier.
   • The generals swore an oath of loyalty to the country.

3. A light, irreverent or insulting appeal to a deity or other entity.

4. A curse, a curse word.

verb

1. (archaic) To pledge.