bomb vs dud

bomb and dud both are nouns.

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

As nouns, bomb and dud are synonyms defined as:

Other synonyms of bomb include turkey.

bomb (noun)	dud (noun)
an explosive device fused to explode under specific conditions	an event that fails badly or is totally ineffectual
strong sealed vessel for measuring heat of combustion	an explosion that fails to occur
an event that fails badly or is totally ineffectual	someone who is unsuccessful

bomb (adjective)	dud (adjective)
	failing to detonate; especially not charged with an active explosive

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