captivity vs enslavement

captivity and enslavement both are nouns.

Word	Noun	Adjective	Verb	Adverb
captivity	Yes	No	No	No
enslavement	Yes	No	No	No

As nouns, captivity and enslavement are synonyms defined as:

captivity (noun)	enslavement (noun)
the state of being a slave	the act of making slaves of your captives
the state of being imprisoned	the state of being a slave