coloured vs roan

coloured and roan both are nouns.

Word	Noun	Adjective	Verb	Adverb
coloured	Yes	Yes	No	No
roan	Yes	Yes	No	No

coloured (noun)	roan (noun)
a United States term for Blacks that is now considered offensive	a horse having a brownish coat thickly sprinkled with white or gray
	a soft sheepskin leather that is colored and finished to resemble morocco; used in bookbinding

coloured (adjective)	roan (adjective)
having color or a certain color; sometimes used in combination	(used of especially horses) having a brownish coat thickly sprinkled with white or grey
(used of color) artificially produced; not natural
having skin rich in melanin pigments;
favoring one person or side over another