As a noun:
* The couple exchanged vows during their wedding ceremony.
* She made a vow to never forget her friend's kindness.
* The king took a vow of silence after his defeat.
As a verb:
* I vow to always be there for you.
* The soldiers vowed to defend their country with their lives.
* He vowed revenge after his family was wronged.
In different contexts:
* Solemn vow: "She made a solemn vow to always be honest."
* Broken vow: "He broke his vow to stay sober."
* Vow of poverty: "Some religious orders take a vow of poverty."
* Vow of celibacy: "The priests made a vow of celibacy."
You can also use "vow" in figurative language:
* "She vowed to conquer her fear."
* "He vowed to learn from his mistakes."
The word "vow" is often associated with promises, pledges, and commitments. It implies a strong sense of determination and seriousness.