To do, perform, or perpetrate: commit a murder. To put in trust or charge; entrust: commit oneself to the care of a doctor; commit responsibilities to an assistant. To place officially in confinement or custody, as in a mental health facility. To consign for future use or reference or for preservation: commit the secret code to memory. To put into a place to be kept safe or to be disposed of. To make known the views of (oneself) on an issue: I never commit myself on such issues. To bind or obligate, as by a pledge: They were committed to follow orders. To refer (a legislative bill, for example) to a committee. To pledge or obligate one's own self: felt that he was too young to commit fully to marriage.