pipe vs shrill

pipe is a noun but shrill is not a noun.

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

As verbs, pipe and shrill are synonyms defined as:

Other synonyms of pipe include pipe up, shriek.

pipe (noun)	shrill (noun)
a long tube made of metal or plastic that is used to carry water or oil or gas etc.
a tube with a small bowl at one end; used for smoking tobacco
the flues and stops on a pipe organ
a tubular wind instrument
a hollow cylindrical shape

pipe (adjective)	shrill (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