transitive verb
to pledge or promise solemnly; take an oath.
In court, she vowed that she would tell the truth.
After his car accident, he vowed to stop drinking.
She vowed to her husband that she would stand by him regardless of what might happen.

transitive verb
to pledge or promise solemnly; take an oath.
In court, she vowed that she would tell the truth.
After his car accident, he vowed to stop drinking.
She vowed to her husband that she would stand by him regardless of what might happen.