kneeler vs actor

kneeler and actor both are nouns.

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

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

Other hypernyms of kneeler include doer, worker.

kneeler (noun)	actor (noun)
a board (sometimes cushioned) for someone to kneel on	a theatrical performer
a person in a kneeling position	a person who acts and gets things done