danseur vs danseur noble

danseur and danseur noble both are nouns.

Word	Noun	Adjective	Verb	Adverb
danseur	Yes	No	No	No
danseur noble	Yes	No	No	No

As nouns, danseur and danseur noble are synonyms defined as:

danseur and danseur noble: a male ballet dancer who is the partner of a ballerina

danseur (noun)	danseur noble (noun)
a male ballet dancer who is the partner of a ballerina	a male ballet dancer who is the partner of a ballerina