variation vs concert dance

variation and concert dance both are nouns.

Word	Noun	Adjective	Verb	Adverb
variation	Yes	No	No	No
concert dance	Yes	No	No	No

variation (noun)	concert dance (noun)
an activity that varies from a norm or standard	a theatrical representation of a story that is performed to music by trained dancers
the act of changing or altering something slightly but noticeably from the norm or standard
(ballet) a solo dance or dance figure
an artifact that deviates from a norm or standard
something a little different from others of the same type
a repetition of a musical theme in which it is modified or embellished
an instance of change; the rate or magnitude of change
(biology) an organism that has characteristics resulting from chromosomal alteration
(astronomy) any perturbation of the mean motion or orbit of a planet or satellite (especially a perturbation of the earth's moon)
the process of varying or being varied
the angle (at a particular location) between magnetic north and true north