vaginitis vs redness

vaginitis and redness both are nouns.

Word	Noun	Adjective	Verb	Adverb
vaginitis	Yes	No	No	No
redness	Yes	No	No	No

As nouns, redness is a hypernym of vaginitis; that is, redness is a word with a broader meaning than vaginitis:

vaginitis: inflammation of the vagina (usually associated with candidiasis)
redness: a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat

Other hypernyms of vaginitis include inflammation, rubor.

vaginitis (noun)	redness (noun)
inflammation of the vagina (usually associated with candidiasis)	red color or pigment; the chromatic color resembling the hue of blood
	a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat