reincarnation vs nascency

reincarnation and nascency both are nouns.

Word	Noun	Adjective	Verb	Adverb
reincarnation	Yes	No	No	No
nascency	Yes	No	No	No

As nouns, nascency is a hypernym of reincarnation; that is, nascency is a word with a broader meaning than reincarnation:

Other hypernyms of reincarnation include birth, nascence, nativity.

reincarnation (noun)	nascency (noun)
the Hindu or Buddhist doctrine that a person may be reborn successively into one of five classes of living beings (god or human or animal or hungry ghost or denizen of Hell) depending on the person's own actions	the event of being born
a second or new birth
embodiment in a new form (especially the reappearance or a person in another form)