fuel-air bomb vs bomb

fuel-air bomb and bomb both are nouns.

Word	Noun	Adjective	Verb	Adverb
fuel-air bomb	Yes	No	No	No
bomb	Yes	No	Yes	No

As nouns, bomb is a hypernym of fuel-air bomb; that is, bomb is a word with a broader meaning than fuel-air bomb:

Other hypernyms of fuel-air bomb include FAE, fuel-air explosive.

fuel-air bomb (noun)	bomb (noun)
a bomb that uses a fuel-air explosive	an explosive device fused to explode under specific conditions
	strong sealed vessel for measuring heat of combustion
	an event that fails badly or is totally ineffectual

fuel-air bomb (verb)	bomb (verb)
	throw bombs at or attack with bombs
	fail to get a passing grade