squall vs let out

squall is a noun but let out is not a noun.

Word	Noun	Adjective	Verb	Adverb
squall	Yes	No	Yes	No
let out	No	No	Yes	No

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

Other hypernyms of squall include emit, let loose, utter.

squall (noun)	let out (noun)
sudden violent winds; often accompanied by precipitation

squall (verb)	let out (verb)
utter a sudden loud cry	make (clothes) larger
make high-pitched, whiney noises	make known to the public information that was previously known only to a few people or that was meant to be kept a secret
blow in a squall	express audibly; utter sounds (not necessarily words)
	bring out of a specific state