bombardment vs bombard

bombardment and bombard both are nouns.

Word	Noun	Adjective	Verb	Adverb
bombardment	Yes	No	No	No
bombard	Yes	No	Yes	No

bombardment (noun)	bombard (noun)
the heavy fire of artillery to saturate an area rather than hit a specific target	a large shawm; the bass member of the shawm family
an attack by dropping bombs
the act (or an instance) of subjecting a body or substance to the impact of high-energy particles (as electrons or alpha rays)
the rapid and continuous delivery of linguistic communication (spoken or written)

bombardment (verb)	bombard (verb)
	direct high energy particles or radiation against
	address with continuously or persistently, as if with a barrage
	throw bombs at or attack with bombs
	cast, hurl, or throw repeatedly with some missile