commit

If you commit something illegal or bad, you do it.

Example: We have committed no offense and ask to be freed at once.

If you commit to something, you agree or say that you will do or participate in something.

Example: The president has committed the government to improving schools.

If you commit someone to a place or a process, you send them there, often against their will.

Example: He was committed to a mental hospital after he tried to kill himself.

If you commit words or idea to something, you record them there.

Example: He committed the whole speech to memory.