snipe vs assail

snipe is a noun but assail is not a noun.

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

As verbs, snipe and assail are synonyms defined as:

Other synonyms of snipe include assault, attack, lash out, round.

snipe (noun)	assail (noun)
a gunshot from a concealed location
Old or New World straight-billed game bird of the sandpiper family; of marshy areas; similar to the woodcocks

snipe (verb)	assail (verb)
attack in speech or writing	attack in speech or writing
aim and shoot with great precision	attack someone physically or emotionally
hunt or shoot snipe	launch an attack or assault on; begin hostilities or start warfare with