covered stadium vs dome

covered stadium and dome both are nouns.

Word	Noun	Adjective	Verb	Adverb
covered stadium	Yes	No	No	No
dome	Yes	No	No	No

As nouns, covered stadium and dome are synonyms defined as:

Other synonyms of covered stadium include domed stadium.

covered stadium (noun)	dome (noun)
a stadium that has a roof	a hemispherical roof
	a stadium that has a roof
	informal terms for a human head
	a concave shape whose distinguishing characteristic is that the concavity faces downward