cluster bomblet vs bomb

cluster bomblet and bomb both are nouns.

Word	Noun	Adjective	Verb	Adverb
cluster bomblet	Yes	No	No	No
bomb	Yes	No	Yes	No

As nouns, bomb is a hypernym of cluster bomblet; that is, bomb is a word with a broader meaning than cluster bomblet:

cluster bomblet: one of the smaller bombs that are released from a cluster bomb
bomb: an explosive device fused to explode under specific conditions

cluster bomblet (noun)	bomb (noun)
one of the smaller bombs that are released from a cluster bomb	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

cluster bomblet (verb)	bomb (verb)
	throw bombs at or attack with bombs
	fail to get a passing grade