balanitis vs rubor

balanitis and rubor both are nouns.

Word	Noun	Adjective	Verb	Adverb
balanitis	Yes	No	No	No
rubor	Yes	No	No	No

As nouns, rubor is a hypernym of balanitis; that is, rubor is a word with a broader meaning than balanitis:

balanitis: inflammation of the head of the penis
rubor: a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat

Other hypernyms of balanitis include inflammation, redness.

balanitis (noun)	rubor (noun)
inflammation of the head of the penis	a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat