terribly vs colloquialism

terribly is not a noun while colloquialism is a noun.

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

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

terribly (adverb)	colloquialism (adverb)
used as intensifiers
in a terrible manner