swear
🇺🇸
/swer/
🇬🇧
/sweə(r)/
to use bad words, especially when angry
He swore loudly when he dropped the hammer.
to promise strongly to do something
I swear to finish this project by Friday.
to promise to speak the truth
The witness swore honesty in court.
to formally promise, especially in a legal setting
The judge ordered them to swear loyalty.
to make someone promise secrecy
They were sworn to keep the secret.