Apologize is a verb meaning to express regret for something that one has done wrong.
Common usages:
1. "I want to apologize for my behavior yesterday."
2. "She apologized profusely for being late."
3. "You should apologize to your sister."
Related terms:
- Apology (n.): a regretful acknowledgment of an offense or failure
- Apologetic (adj.): showing or expressing regret