UK vs colour supplement

UK and colour supplement both are nouns.

Word	Noun	Adjective	Verb	Adverb
UK	Yes	No	No	No
colour supplement	Yes	No	No	No

UK (noun)	colour supplement (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	(British) a magazine that is printed in color and circulated with a newspaper (especially on weekends)