<p><strong>Noun</strong></p><ul><li>a solemn promise, pledge, or personal commitment: marriage vows; a vow of secrecy.</li><li>a solemn promise made to a deity or saint committing oneself to an act, service, or condition.</li><li>a solemn or earnest declaration.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to make a vow of; promise by a vow, as to God or a saint: to vow a crusade or a pilgrimage.</li><li>to pledge or resolve solemnly to do, make, give, observe, etc.: They vowed revenge.</li><li>to declare solemnly or earnestly; assert emphatically (often followed by a clause as object): She vowed that she would take the matter to court.</li><li>to dedicate or devote by a vow: to vow oneself to the service of God.</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to make a vow.</li><li>to make a solemn or earnest declaration.</li></ul>