redden vs color

redden is not a noun while color is a noun.

Word	Noun	Adjective	Verb	Adverb
redden	No	No	Yes	No
color	Yes	Yes	Yes	No

As verbs, color is a hypernym of redden; that is, color is a word with a broader meaning than redden:

Other hypernyms of redden include colour, discolor, discolour.

As verbs, color is a hypernym of redden; that is, color is a word with a broader meaning than redden:

Other hypernyms of redden include colour, discolor, discolour.

As verbs, color is a hypernym of redden; that is, color is a word with a broader meaning than redden:

Other hypernyms of redden include color in, colorise, colorize, colour, colour in, colourise, colourize.

redden (noun)	color (noun)
	a visual attribute of things that results from the light they emit or transmit or reflect
	the appearance of objects (or light sources) described in terms of a person's perception of their hue and lightness (or brightness) and saturation
	the timbre of a musical sound
	interest and variety and intensity
	an outward or token appearance or form that is deliberately misleading
	(physics) the characteristic of quarks that determines their role in the strong interaction
	any material used for its color

redden (adjective)	color (adjective)
	having or capable of producing colors

redden (verb)	color (verb)
turn red, as if in embarrassment or shame	add color to
turn red or redder	change color, often in an undesired manner
make red	affect as in thought or feeling
	give a deceptive explanation or excuse for
	decorate with colors
	modify or bias