dinky vs colloquialism

dinky and colloquialism both are nouns.

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

dinky (noun)	colloquialism (noun)
a small locomotive	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech

dinky (adjective)	colloquialism (adjective)
(British informal) pretty and neat
small and unimpressive