To vow is to make an earnest promise or pledge. People getting married often vow to stick together “till death do us part,” while a presidential candidate might vow to lower taxes.

You can use vow as both a noun and a verb: A vow is a solemn declaration; to vow is the act of making that promise. Vows are meant to be serious, sacred things, even vows made with the best intentions can be broken. Wrote American short-story writer and poet Dorothy Parker, “By the time you swear you are his, shivering and sighing, And he vows his passion is infinite and undying—Lady, make a note of this: One of you is lying.”

Definitions of vow

n 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”
Type of:
assurance, pledge
a binding commitment to do or give or refrain from something

v make a vow; promise

“He vowed never to drink alcohol again”
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affiance, betroth, engage, plight
give to in marriage
take vows, as in religious order
promise solemnly; take an oath
take the veil
become a nun
Type of:
pledge, plight
promise solemnly and formally

v dedicate to a deity by a vow

Type of:
commit, consecrate, dedicate, devote, give
give entirely to a specific person, activity, or cause

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