pancreatitis vs redness

pancreatitis and redness both are nouns.

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

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

pancreatitis: inflammation of the pancreas; usually marked by abdominal pain
redness: a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat

Other hypernyms of pancreatitis include inflammation, rubor.

pancreatitis (noun)	redness (noun)
inflammation of the pancreas; usually marked by abdominal pain	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