dance palace vs dance hall

dance palace and dance hall both are nouns.

Word	Noun	Adjective	Verb	Adverb
dance palace	Yes	No	No	No
dance hall	Yes	No	No	No

As nouns, dance palace and dance hall are synonyms defined as:

Other synonyms of dance palace include ballroom.

dance palace (noun)	dance hall (noun)
large room used mainly for dancing	large room used mainly for dancing