spectator vs beholder

spectator and beholder both are nouns.

Word	Noun	Adjective	Verb	Adverb
spectator	Yes	No	No	No
beholder	Yes	No	No	No

As nouns, beholder is a hypernym of spectator; that is, beholder is a word with a broader meaning than spectator:

spectator: a close observer; someone who looks at something (such as an exhibition of some kind)
beholder: a person who becomes aware (of things or events) through the senses

Other hypernyms of spectator include observer, perceiver, percipient.

spectator (noun)	beholder (noun)
a woman's pump with medium heel; usually in contrasting colors for toe and heel	a person who becomes aware (of things or events) through the senses
a close observer; someone who looks at something (such as an exhibition of some kind)