The generic term is server
The waitress served the meal efficiently. The patrons left the waitress a good tip.
hostessserverattendant
Kellnerin
No, 'waitress' is feminine. The masculine term is 'waiter.' The usual unisex term is 'server.'
When it is a possessive, use apostrophe. The waitress's coat was stolen. The waitresses' paychecks were cut.
Yes, since the term "waitress" has not yet fallen into general disuse like the term "bartendress", for instance.
Carhop.
speedy
Belhop
Yes, the noun 'waitress' is a common noun, a general word for any female server who waits tables in a restaurant.
Carhop
Similar is an adjective.