1. (v. t.) To give in trust; to put into charge or keeping; to entrust; to consign; -- used with to, unto.

2. (v. t.) To put in charge of a jailor; to imprison.

3. (v. t.) To do; to perpetrate, as a crime, sin, or fault.

4. (v. t.) To join for a contest; to match; -- followed by with.

5. (v. t.) To pledge or bind; to compromise, expose, or endanger by some decisive act or preliminary step; -- often used reflexively; as, to commit one's self to a certain course.

6. (v. t.) To confound.

7. (v. i.) To sin; esp., to be incontinent.