trier vs actor

trier and actor both are nouns.

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

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

Other hypernyms of trier include doer, worker.

trier (noun)	actor (noun)
one who tries	a theatrical performer
one (as a judge) who examines and settles a case	a person who acts and gets things done