Discuss the semantic profile of the word "commit" - how it can be used in different contexts

The word commit has different meaning, and I'll just list some of them:

1. to write something down (commit these ides to paper)

2. to pledge to some position, or to state what you stand on an issue (I asked if he was a participate, but he refused to commit himself.

3. to bind yourself, or to obligate (commit yourself to a cause)

4. to entrust (I commit myself to you)

5. to do something, perform an action (to commit murder)

6. to commit to custody (he was committed to prison)