1. vow - Noun
2. vow - Verb
A solemn promise made to God, or to some deity; an act by which one consecrates or devotes himself, absolutely or conditionally, wholly or in part, for a longer or shorter time, to some act, service, or condition; a devotion of one's possessions; as, a baptismal vow; a vow of poverty.
Specifically, a promise of fidelity; a pledge of love or affection; as, the marriage vow.
To give, consecrate, or dedicate to God, or to some deity, by a solemn promise; to devote; to promise solemnly.
To assert solemnly; to asseverate.
To make a vow, or solemn promise.
Source: Webster's dictionaryHe vowed never to drink alcohol again Source: Internet
After allowing her two months preparation, Judges 11:39 states that Jephthah kept his vow. Source: Internet
After working on the idea with Upham, Bellamy concluded "It was my thought that a vow of loyalty or allegiance to the flag should be the dominant idea. Source: Internet
Although Benedictines do not take a vow of silence, hours of strict silence are set, and at other times silence is maintained as much as is practically possible. Source: Internet
Also, whether a priest takes a vow of poverty relates to his sect of Catholicism, Franciscans are especially known for it which is why Pope Francis took the name even though he is actually a Jesuit. Source: Internet
All your Eyewitness hears is a doubling down on their pre-election vow to “not allow” the PPP back in! Source: Internet