waiter vs actor

waiter and actor both are nouns.

Word	Noun	Adjective	Verb	Adverb
waiter	Yes	No	No	No
actor	Yes	No	No	No

As nouns, actor is a hypernym of waiter; that is, actor is a word with a broader meaning than waiter:

Other hypernyms of waiter include doer, worker.

waiter (noun)	actor (noun)
a person whose occupation is to serve at table (as in a restaurant)	a theatrical performer
a person who waits or awaits	a person who acts and gets things done