lazar house vs pesthouse

lazar house and pesthouse both are nouns.

Word	Noun	Adjective	Verb	Adverb
lazar house	Yes	No	No	No
pesthouse	Yes	No	No	No

As nouns, lazar house and pesthouse are synonyms defined as:

lazar house and pesthouse: hospital for persons with infectious diseases (especially leprosy)

Other synonyms of lazar house include lazaret, lazarette, lazaretto.

lazar house (noun)	pesthouse (noun)
hospital for persons with infectious diseases (especially leprosy)	hospital for persons with infectious diseases (especially leprosy)