A community Eruv (Hebrew: ערוב mixture, also transliterate as Eiruv or Erub, plural: Eruvin) is a symbolic boundary that allows Jews who observe the traditional rules concerning Shabbat to carry certain items outside the walls of their own property (including outdoors and to other areas in a shared dwelling) that would otherwise be forbidden during Shabbat. It is more properly known as an eruv chatzerot (Hebrew: ערוב חצרות).