to make a determined decision or promise to do something
Before they are allowed to work, all senators must vow to never accept bribes.
The couple exchanged vows during their wedding ceremony, promising to love and support each other.
After a challenging year, she made a personal vow to prioritize her well-being and happiness.
The knight made a solemn vow to protect the kingdom from any external threats.
When accepting the award, the actor made a heartfelt vow to continue working hard and delivering exceptional performances.
