Commitment can mean several different things. It can mean a dedication or obligation to a cause or other people. A person may describe their work commitments which are obligatory duties they must perform for their job. Or you can have commitment to a person such as a partner or a friend which means you are dedicated and true to them. In health and legal fields a commitment can mean an individual being checked into a rehabilitation center or a mental treatment facility. Typically when it is said someone is being committed to a facility it means they are being sent to the institution by another party such as a doctor or the legal system.