blitz vs assail

blitz is a noun but assail is not a noun.

Word	Noun	Adjective	Verb	Adverb
blitz	Yes	No	Yes	No
assail	No	No	Yes	No

As verbs, assail is a hypernym of blitz; that is, assail is a word with a broader meaning than blitz:

blitz: attack suddenly and without warning
assail: launch an attack or assault on; begin hostilities or start warfare with

Other hypernyms of blitz include attack.

blitz (noun)	assail (noun)
a swift and violent military offensive with intensive aerial bombardment
(American football) defensive players try to break through the offensive line

blitz (verb)	assail (verb)
attack suddenly and without warning	attack in speech or writing
	attack someone physically or emotionally
	launch an attack or assault on; begin hostilities or start warfare with