sun parlour vs sun porch

sun parlour and sun porch both are nouns.

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

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

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

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

sun parlour (noun)	sun porch (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