dud vs colloquialism

dud and colloquialism both are nouns.

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

dud (noun)	colloquialism (noun)
an event that fails badly or is totally ineffectual	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech
an explosion that fails to occur
someone who is unsuccessful

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