Ta'anit

A ta'anit or taanis (in Ashkenaz pronunciation) or taʿanith in Classical Hebrew  is a fast in Judaism in which one abstains from all food and drink, including water. A Jewish fast may have one or more purposes, including:

• A tool for repentance
• An expression of mourning
• Supplication, such as the Fast of Esther or a Ta'anit Halom (fast over a disturbing dream).