If you're committed to something, you're pledged or obligated to do it.

What does to commit to something mean?

To commit is to fully dedicate yourself to something. To commit yourself to being the coolest kid on the beach means spending hours at the mall trying on trunks and flip-flops. Commit can also mean "perform an act" — often the kind that can get you in trouble.

What is the word when you are committed to something?

Some common synonyms of commit are confide, consign, entrust, and relegate.