commit
Definitions
To carry out, perform, or perpetrate an act, especially a crime or error.
To pledge or bind oneself to a particular course of action or relationship.
To consign or entrust someone or something to a specific place or state, such as a prison or mental institution.
Examples
You must commit to your fitness goals if you want to see real results.
The suspect did not commit the crime he was accused of.
It is a big decision to commit to a long-term contract.