Manager (noun)

1. A person who is in charge of controlling or making decisions about a company or organization.
2. A person who is responsible for the organization and control of something.

Origin:

From middle english manageour, from old french, from mangement (see management).

Examples:

1. The manager of the hotel is very friendly and helpful.
2. She has been promoted to manager of the department.
3. The store manager is responsible for the store's inventory.
4. The company"s manager is always looking for ways to improve the company"s performance.
5. The manager is responsible for the day-to-day running of the business.