rebirth vs spiritual rebirth

rebirth and spiritual rebirth both are nouns.

Word	Noun	Adjective	Verb	Adverb
rebirth	Yes	No	No	No
spiritual rebirth	Yes	No	No	No

As nouns, rebirth and spiritual rebirth are synonyms defined as:

rebirth and spiritual rebirth: a spiritual enlightenment causing a person to lead a new life

Other synonyms of rebirth include conversion.

rebirth (noun)	spiritual rebirth (noun)
a spiritual enlightenment causing a person to lead a new life	a spiritual enlightenment causing a person to lead a new life
the revival of learning and culture
a second or new birth
after death the soul begins a new cycle of existence in another human body