in charge (of something)being the person who has control of or is responsible for someone or something
[TahlilGaran] Dictionary of Contemporary English ▲
in charge adv. or
adj. phr.,
1. In authority or control; in a position to care for or supervise; responsible.
If you have any questions, ask the boss. He's in charge. 2. Under care or supervision.
The sick man was taken in charge by the doctor.
During your visit to the library, you will be in the librarian's charge. Compare: TAKE CARE OF.
[TahlilGaran] English Idioms Dictionary ▲