roar vs squall

roar and squall both are nouns.

Word	Noun	Adjective	Verb	Adverb
roar	Yes	No	Yes	No
squall	Yes	No	Yes	No

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

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

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

Other hyponyms of roar include waul, wawl.

roar (noun)	squall (noun)
a very loud utterance (like the sound of an animal)	sudden violent winds; often accompanied by precipitation
a deep prolonged loud noise
the sound made by a lion

roar (verb)	squall (verb)
laugh unrestrainedly and heartily	utter a sudden loud cry
make a loud noise, as of wind, water, or vehicles	make high-pitched, whiney noises
emit long loud cries	blow in a squall
utter words loudly and forcefully
make a loud noise, as of animal
act or proceed in a riotous, turbulent, or disorderly way