Definitions

1. noun

a promise or declaration of devotion or loyalty, especially to a person, cause, or principle

“The newlyweds made vows to love and cherish each other for the rest of their lives.”

2. verb

to make a solemn promise or declaration, especially to do something or to behave in a certain way

“She vowed to reduce her carbon footprint and live a more sustainable lifestyle.”

3. verb

to swear or affirm the truth of something, especially in a court of law

“The witness vowed to tell the truth, the whole truth, and nothing but the truth.”