shrill vs yell

shrill is not a noun while yell is a noun.

Word	Noun	Adjective	Verb	Adverb
shrill	No	Yes	Yes	No
yell	Yes	No	Yes	No

As verbs, yell is a hypernym of shrill; that is, yell is a word with a broader meaning than shrill:

Other hypernyms of shrill include call, cry, holler, hollo, scream, shout, shout out, squall.

shrill (noun)	yell (noun)
	a loud utterance; often in protest or opposition
	a loud utterance of emotion (especially when inarticulate)

shrill (adjective)	yell (adjective)
of colors that are bright and gaudy
having or emitting a high-pitched and sharp tone or tones
being sharply insistent on being heard

shrill (verb)	yell (verb)
utter a shrill cry	utter or declare in a very loud voice
	utter a sudden loud cry