You have it backwards. It is Shabbat Shalom (שבת שלו×), and it is a greeting used on Fridays and Saturdays, which translates to "a peaceful Sabbath".
Shabbat Shalom is a greeting that Jews say to each other on Shabbat (the sabbath). It means "A peaceful Shabbat"
Shabbat Shalom Lekulam means 'A Good Sabbath to Everyone'
Shabbat Shalom means "peaceful Sabbath" and is the standard greeting between Jews on Saturday.
You respond the same way: Shabbat Shalom
In French, you would say "Bon shabbat" for Sabbath greetings or "Shabbat shalom" can also be understood in French.
"Shabbat Shalom!"
if you mean Shabbat Shalom, it means "A peaceful Sabbath". But what you wrote actually means "Grandmothers of peace"
The most polite response would be to wish the person a "Shabbat shalom" in return. It's like wishing someone a nice weekend.
Shabbat shalom is a Jewish greeting which we say during the day of Shabbat. See also:More about the Jewish Shabbat
Yes, that's the customary response.
'Shabbat shalom', which means 'A peaceful Sabbath', is said during Shabbat - sundown Friday to Saturday after twilight.
It means "Have a peaceful Sabbath". It's how Jews greet each other during Shabbat.