caterwaul vs pipe

caterwaul and pipe both are nouns.

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

As verbs, pipe is a hypernym of caterwaul; that is, pipe is a word with a broader meaning than caterwaul:

Other hypernyms of caterwaul include pipe up, shriek, shrill.

caterwaul (noun)	pipe (noun)
the yowling sound made by a cat in heat	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