redbrick vs UK

redbrick is not a noun while UK is a noun.

Word	Noun	Adjective	Verb	Adverb
redbrick	No	Yes	No	No
UK	Yes	No	No	No

redbrick (noun)	UK (noun)
	a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom

redbrick (adjective)	UK (adjective)
of or relating to British universities founded in the late 19th century or the 20th century