repartee vs raillery

repartee and raillery both are nouns.

Word	Noun	Adjective	Verb	Adverb
repartee	Yes	No	No	No
raillery	Yes	No	No	No

As nouns, raillery is a hyponym of repartee; that is, raillery is a word with a more specific, narrower meaning than repartee:

Other hyponyms of repartee include backchat, banter, give-and-take.

repartee (noun)	raillery (noun)
adroitness and cleverness in reply	light teasing repartee