Bar and Bat Mitzvah "son" (), while "bat" () means "daughter" in Hebrew, and "mitzvah" () means "commandment" or "law" (plural: "mitzvot"). Thus "bar mitzvah" and "bat mitzvah" literally translate to "son of commandment" and "daughter of commandment". However, in rabbinical usage, the word "bar" means "under the category of" or "subject to". "Bar mitzvah" therefore translates to "an [agent] who is subject to the law". Although the term is commonly used to refer to the ritual itself, in fact the phrase originally refers to the person. The modern method of celebrating becoming a bar mitzvah did not exist in the time of the
Movement for Reform Judaism boys have their bar mitzvah. Reform Judaism is welcoming to non-Jewish spouses; while the Assembly maintains "clear opposition" to involvement in interfaith unions, since 2012 it allows rabbis to conduct celebratory events as long as the ceremony does not involve clergy or motifs from other religions, or conversely those of a Jewish wedding, like ritual canopy. As of 2017, Reform Judaism has 41 synagogues, of which 39 are located in England and 13 in Greater London. There is one congregation in Cardiff and one in Glasgow. As of 2010, Reform Judasim had 16,125 member households, accounting for 19.4% of synagogue-affiliated