scratcher vs actor

scratcher and actor both are nouns.

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

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

Other hypernyms of scratcher include doer, worker.

scratcher (noun)	actor (noun)
a device used for scratching	a theatrical performer
a person who scratches to relieve an itch	a person who acts and gets things done
a workman who uses a tool for scratching