pipe up vs squall

pipe up is not a noun while squall is a noun.

Word	Noun	Adjective	Verb	Adverb
pipe up	No	No	Yes	No
squall	Yes	No	Yes	No

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

Other hypernyms of pipe up include call, cry, holler, hollo, scream, shout, shout out, yell.

pipe up (noun)	squall (noun)
	sudden violent winds; often accompanied by precipitation

pipe up (verb)	squall (verb)
begin to play or sing	utter a sudden loud cry
utter a shrill cry	make high-pitched, whiney noises
	blow in a squall