Definition from Wiktionary, the free dictionary
- The Biblical seventh day of the week, observed as a day of rest in Judaism, Seventh-day Adventism, or Seventh Day Baptism, starting at sundown on Friday till sundown on Saturday.
- Sunday, observed throughout the majority of Christianity as a day of rest.
- Friday, observed in Islam as a day of rest.
- A meeting of witches at midnight. (Also: witches' sabbath or black sabbath).
Biblical seventh day