thyroiditis vs rubor

thyroiditis and rubor both are nouns.

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

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

thyroiditis: inflammation of the thyroid gland
rubor: a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat

Other hypernyms of thyroiditis include inflammation, redness.

thyroiditis (noun)	rubor (noun)
inflammation of the thyroid gland	a response of body tissues to injury or irritation; characterized by pain and swelling and redness and heat