noun a solemn affirmation or declaration, made with a reverent appeal to god for the truth of what is affirmed.
2. oath ·noun a solemn affirmation, connected with a sacred object, or one regarded as sacred, as the temple, the altar, the blood of abel, the bible, the koran, ·etc.
3. oath ·noun an appeal (in verification of a statement made) to a superior sanction, in such a form as exposes the party making the appeal to an indictment for perjury if the statement be false.
4. oath ·noun a careless and blasphemous use of the name of the divine being, or anything divine or sacred, by way of appeal or as a profane exclamation or ejaculation; an expression of profane swearing.