liver vs colourful

liver is a noun but colourful is not a noun.

Word	Noun	Adjective	Verb	Adverb
liver	Yes	Yes	No	No
colourful	No	Yes	No	No

liver (noun)	colourful (noun)
large and complicated reddish-brown glandular organ located in the upper right portion of the abdominal cavity; secretes bile and functions in metabolism of protein and carbohydrate and fat; synthesizes substances involved in the clotting of the blood; synthesizes vitamin A; detoxifies poisonous substances and breaks down worn-out erythrocytes
liver of an animal used as meat
someone who lives in a place
a person who has a special life style

liver (adjective)	colourful (adjective)
having a reddish-brown color	having much or varied color
	striking in variety and interest
	having color or a certain color; sometimes used in combination