Definitions

1. verb

to make a solemn declaration or promise, or to state something as true, often on oath

“She swore to tell the truth at the trial.”

2. verb

to utter profane or indecent language

“He was asked to swear less in front of the children.”

3. verb

to be strongly committed to a particular opinion or intention

“I swear to finish the project by tomorrow.”

4. noun

a solemn declaration or promise, especially one made on oath

“The judge asked the witness to take the oath and swear to tell the truth.”