peritonsillar abscess vs quinsy

peritonsillar abscess and quinsy both are nouns.

Word	Noun	Adjective	Verb	Adverb
peritonsillar abscess	Yes	No	No	No
quinsy	Yes	No	No	No

As nouns, peritonsillar abscess and quinsy are synonyms defined as:

peritonsillar abscess and quinsy: a painful pus filled inflammation of the tonsils and surrounding tissues; usually a complication of tonsillitis

peritonsillar abscess (noun)	quinsy (noun)
a painful pus filled inflammation of the tonsils and surrounding tissues; usually a complication of tonsillitis	a painful pus filled inflammation of the tonsils and surrounding tissues; usually a complication of tonsillitis