endometritis vs redness

endometritis and redness both are nouns.

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

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

endometritis: inflammation of the lining of the uterus (of the endometrium)
redness: a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat

Other hypernyms of endometritis include inflammation, rubor.

endometritis (noun)	redness (noun)
inflammation of the lining of the uterus (of the endometrium)	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