1. A solemn pledge (to oneself or to another or to a deity) to do something or to behave in a certain manner
   "they took vows of poverty"

1. Make a solemn pledge or promise
   "He vowed never to drink alcohol again"
    
2. Dedicate to a deity by a vow
   "The monk vowed to live a life of poverty and service";
   - consecrate

Derived forms: vowing, vows, vowed

Type of: assurance, commit, consecrate, dedicate, devote, give, pledge, plight [archaic]

Encyclopedia: Vow