skip-bomb vs bombard

skip-bomb is not a noun while bombard is a noun.

Word	Noun	Adjective	Verb	Adverb
skip-bomb	No	No	Yes	No
bombard	Yes	No	Yes	No

As verbs, bombard is a hypernym of skip-bomb; that is, bombard is a word with a broader meaning than skip-bomb:

Other hypernyms of skip-bomb include bomb.

skip-bomb (noun)	bombard (noun)
	a large shawm; the bass member of the shawm family

skip-bomb (verb)	bombard (verb)
attack with delayed release bombs	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