noun A solemn promise to perform some act, or behave in a specified manner, especially a promise to live and act in accordance with the rules of a religious order.
The old hermit, up in the mountains, took a vow of silence.
noun A declaration or assertion.
noun A votive offering.
verb To make a vow; to promise.
verb To make a vow regarding (something).
The wronged woman vowed revenge.
verb To declare publicly that one has made a vow, usually to show one's determination or to announce an act of retaliation.