whispering dome vs dome

whispering dome and dome both are nouns.

Word	Noun	Adjective	Verb	Adverb
whispering dome	Yes	No	No	No
dome	Yes	No	No	No

As nouns, dome is a hypernym of whispering dome; that is, dome is a word with a broader meaning than whispering dome:

whispering dome: a space beneath a dome or arch in which sounds produced at certain points are clearly audible at certain distant points
dome: a hemispherical roof

whispering dome (noun)	dome (noun)
a space beneath a dome or arch in which sounds produced at certain points are clearly audible at certain distant points	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