bas mitzvah vs bath mitzvah

bas mitzvah and bath mitzvah both are nouns.

Word	Noun	Adjective	Verb	Adverb
bas mitzvah	Yes	No	No	No
bath mitzvah	Yes	No	No	No

As nouns, bas mitzvah and bath mitzvah are synonyms defined as:

bas mitzvah and bath mitzvah: (Judaism) an initiation ceremony marking the 12th birthday of a Jewish girl and signifying the beginning of religious responsibility

Other synonyms of bas mitzvah include bat mitzvah.

bas mitzvah (noun)	bath mitzvah (noun)
(Judaism) an initiation ceremony marking the 12th birthday of a Jewish girl and signifying the beginning of religious responsibility	(Judaism) an initiation ceremony marking the 12th birthday of a Jewish girl and signifying the beginning of religious responsibility