Waiter n. : One who, or that which, waits; an attendant; a servant in attendance, esp. at table.

Waiter n. : A vessel or tray on which something is carried, as dishes, etc.; a salver.

Example:
What time would a head Waiter get off if the restaurant closes at 11pm?

Taxonomy
waiting staff, waitress, The American Heritage Dictionary of the English Language, meal, restaurant, waiter, service charge, free encyclopedia, duties, head server, waitstaff, the 1980s, employers, service, the waiting, Western countries, wait staff, food and drink.

Defination from the web: