organ stop vs pipe

organ stop and pipe both are nouns.

Word	Noun	Adjective	Verb	Adverb
organ stop	Yes	No	No	No
pipe	Yes	No	Yes	No

As nouns, pipe is a hypernym of organ stop; that is, pipe is a word with a broader meaning than organ stop:

Other hypernyms of organ stop include organ pipe, pipework.

organ stop (noun)	pipe (noun)
a graduated set of organ pipes of like tone quality	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