sunroom vs solarium

sunroom and solarium both are nouns.

Word	Noun	Adjective	Verb	Adverb
sunroom	Yes	No	No	No
solarium	Yes	No	No	No

As nouns, sunroom and solarium are synonyms defined as:

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

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

sunroom (noun)	solarium (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