birth vs renascence

birth and renascence both are nouns.

Word	Noun	Adjective	Verb	Adverb
birth	Yes	No	Yes	No
renascence	Yes	No	No	No

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

Other hyponyms of birth include delivery, live birth, posthumous birth, posthumous birth, rebirth, reincarnation.

birth (noun)	renascence (noun)
the event of being born	a second or new birth
a baby born; an offspring
the process of giving birth
the kinship relation of an offspring to the parents
the time when something begins (especially life)

birth (verb)	renascence (verb)
cause to be born