convulsion vs hoo-hah

convulsion and hoo-hah both are nouns.

Word	Noun	Adjective	Verb	Adverb
convulsion	Yes	No	No	No
hoo-hah	Yes	No	No	No

As nouns, hoo-hah is a hypernym of convulsion; that is, hoo-hah is a word with a broader meaning than convulsion:

Other hypernyms of convulsion include commotion, disruption, disturbance, flutter, hoo-ha, hurly burly, kerfuffle, to-do.

convulsion (noun)	hoo-hah (noun)
a physical disturbance such as an earthquake or upheaval	a disorderly outburst or tumult
violent uncontrollable contractions of muscles
a sudden uncontrollable attack
a violent disturbance