—v.t. 1. to give in trust or charge; consign.
2. to consign for preservation: to commit ideas to writing; to commit a poem to memory. 3. to pledge (oneself) to a position on an issue or question; express (one's intention, feeling, etc.): Asked if he was a candidate, he refused to commit himself. 4. to bind or obligate, as by pledge or assurance; pledge: to commit oneself to a promise; to be committed to a course of action. 5. to entrust, esp. for safekeeping; commend: to commit one's soul to God. 6. to do; perform; perpetrate: to commit murder; to commit an error. 7. to consign to custody: to commit a delinquent to a reformatory. 8. to place in a mental institution or hospital by or as if by legal authority: He was committed on the certificate of two psychiatrists. 9. to deliver for treatment, disposal, etc.; relegate: to commit a manuscript to the flames. 10. to send into a battle: The commander has committed all his troops to the front lines. 11. Parl. Proc.to refer (a bill or the like) to a committee for consideration.
—v.i. to pledge or engage oneself: an athlete who commits to the highest standards.