take over
verb
Definitions
To assume control of something, especially by force; to usurp.
To adopt a further responsibility or duty.
Example: He will take over the job permanently when the accountant retires.
To relieve someone temporarily.
Example: If you will take over driving, I'd like to get some sleep.
To buy out the ownership of a business.
Example: Acme Motors is to take Jetcar Industries over this week, if all goes as planned.