sun porch vs sun lounge

sun porch and sun lounge both are nouns.

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

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

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

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

sun porch (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