sun porch vs sunroom

sun porch and sunroom both are nouns.

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

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

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

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

sun porch (noun)	sunroom (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