holler vs pipe

holler and pipe both are nouns.

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

As verbs, pipe is a hyponym of holler; that is, pipe is a word with a more specific, narrower meaning than holler:

holler (noun)	pipe (noun)
a very loud utterance (like the sound of an animal)	a long tube made of metal or plastic that is used to carry water or oil or gas etc.
a small valley between mountains	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