sun parlour vs sun lounge

sun parlour and sun lounge both are nouns.

Word	Noun	Adjective	Verb	Adverb
sun parlour	Yes	No	No	No
sun lounge	Yes	No	No	No

As nouns, sun parlour and sun lounge are synonyms defined as:

sun parlour and sun lounge: a room enclosed largely with glass and affording exposure to the sun

Other synonyms of sun parlour include solarium, sun parlor, sun porch, sunporch, sunroom.

sun parlour (noun)	sun lounge (noun)
a room enclosed largely with glass and affording exposure to the sun	a room enclosed largely with glass and affording exposure to the sun