Longman Dictionary of Contemporary English
Douglas Harper's Etymology Dictionary
1861, in Judaism, "male person who has completed his 13th year and thus reached the age of religious responsibility," from Hebrew, literally "son of command." As a name for the ceremony itself, by 1941.
WordNet
n. (Judaism) an initiation ceremony marking the 13th birthday of a Jewish boy and signifying the beginning of religious responsibility; "a bar mitzvah is an important social event"
v. confirm in the bar mitzvah ceremony, of boys in the Jewish faith
Usage examples of "bar mitzvah".
In the synagogue at Danny's bar mitzvah he had half resolved to put an end to it.
Anna, maybe, Anna might talk to him as she had on the night of his Bar Mitzvah, which seemed a hundred years ago.
And do you remember him at my bar mitzvah, what a field day he had with Alexander Portnoy?
It was time for his bar mitzvah, the coming-of-age for a Jewish boy.
When I was growing up it's what everyone gave you as a giftfor your bar mitzvah.
Six months away from bar mitzvah, a big party to be arranged, Laura’.
She was calling herself Sara but back when she made her bar mitzvah the name they wrote down was Mark Blaustein.
Willow was at a bar mitzvah, and Oz was playing with the Dingoes out of town.