vow noun

ADJ. formal, solemn | marriage, wedding | monastic, religious | final She left the convent before taking her final vows.

VERB + VOW make, take He made a vow to avenge his father's death. | keep She kept her vow of silence until she died. | break Nothing will persuade me to break this vow. | exchange The couple exchanged vows at the altar. | renew

PREP. ~ of a vow of poverty