bomb vs carpet bomb

bomb is a noun but carpet bomb is not a noun.

Word	Noun	Adjective	Verb	Adverb
bomb	Yes	No	Yes	No
carpet bomb	No	No	Yes	No

As verbs, carpet bomb is a hyponym of bomb; that is, carpet bomb is a word with a more specific, narrower meaning than bomb:

bomb (noun)	carpet bomb (noun)
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

bomb (verb)	carpet bomb (verb)
throw bombs at or attack with bombs	bomb a large area systematically and extensively
fail to get a passing grade