bomb vs flunk

bomb and flunk both are nouns.

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

As verbs, bomb and flunk are synonyms defined as:

Other synonyms of bomb include fail, flush it.

bomb (noun)	flunk (noun)
an explosive device fused to explode under specific conditions	failure to reach a minimum required performance
strong sealed vessel for measuring heat of combustion
an event that fails badly or is totally ineffectual

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