commit (someone or something) to (something)
1. To agree to something. I'm sorry, but I can't commit myself to your project because it seems fundamentally flawed.
2. To devote or dedicate oneself or another to someone or something. You need to fully commit yourself to your family and stop working so many hours. Jana won an academic award after committing herself to her studies. I can commit six of my employees to this project.
3. To engage in an exclusive romantic relationship. I really want to commit to Ryan, but his history of womanizing makes me reluctant to trust him.
commit someone or something to something
to pledge or assign someone or something to something. The boss committed Ralph to the task. I cannot commit any more money to your project.
commit to someone
to marry or enter into an exclusive relationship with another person. Jane says she loves me, but she's not ready to commit to any one person. If you can't commit to me, then this relationship is over.