0 past simple and past participle of vow
1 to make a determined decision or promise to do something:
[ + (that) ] The guerrillas vowed (that) they would overthrow the government.
[ + to infinitive ] After the awful meals we had last Christmas, I vowed to do more of the cooking myself.
After a lengthy and painful divorce, she vowed never to remarry.
She has vowed to remain true to the president whatever happens.
Tamir, one of several sons of the exiled ruler, vowed he would liberate his country from the tyrant.
It is no wonder that, as nationalist identities intensified in the city, ethnic identity remained important and ethnic groups vowed not to disband.
He also vowed to block a special session called by the legislature.
They came to see vowed celibacy as a mark of an inward idolatry of false faith and trust in one's own deeds.