| Noun | 1. | feast day - a day designated for feastingholiday - a day on which work is suspended by law or custom; "no mail is delivered on federal holidays"; "it's a good thing that New Year's was a holiday because everyone had a hangover" Thanksgiving, Thanksgiving Day - fourth Thursday in November in the United States; second Monday in October in Canada; commemorates a feast held in 1621 by the Pilgrims and the Wampanoag Id al-Fitr - a Muslim day of feasting at the end of Ramadan Feast of Sacrifice, Id al-Adha - the 10th day of Dhu'l Hijja; all Muslims attend a service in the mosques and those who are not pilgrims perform a ritual slaughter of a sheep (commemorating God's ransom of Abraham's son from sacrifice) and give at least a third of the meat to charity | |