plum vs colloquialism

plum and colloquialism both are nouns.

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

plum (noun)	colloquialism (noun)
a highly desirable position or assignment	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech
any of numerous varieties of small to medium-sized round or oval fruit having a smooth skin and a single pit
any of several trees producing edible oval fruit having a smooth skin and a single hard stone

plum (adverb)	colloquialism (adverb)
exactly
completely; used as intensifiers