sinusitis vs rubor

sinusitis and rubor both are nouns.

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

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

sinusitis: inflammation of one of the paranasal sinuses
rubor: a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat

Other hypernyms of sinusitis include inflammation, redness.

sinusitis (noun)	rubor (noun)
inflammation of one of the paranasal sinuses	a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat