theatergoer vs looker

theatergoer and looker both are nouns.

Word	Noun	Adjective	Verb	Adverb
theatergoer	Yes	No	No	No
looker	Yes	No	No	No

As nouns, looker is a hypernym of theatergoer; that is, looker is a word with a broader meaning than theatergoer:

theatergoer: someone who attends the theater
looker: a close observer; someone who looks at something (such as an exhibition of some kind)

Other hypernyms of theatergoer include spectator, viewer, watcher, witness.

theatergoer (noun)	looker (noun)
someone who attends the theater	a very attractive or seductive looking woman
	a close observer; someone who looks at something (such as an exhibition of some kind)