I .
1. 6 January, the church festival of Epiphany, formerly celebrated as the last night of Christmas .
2. the evening of 5 January, the day before Epiphany, which traditionally marks the end of Christmas celebrations, so that many people take down the Christmas decorations on 6 January.
II .
a comedy play ( c. 1601) by William Shakespeare . It is set in the court of Orsino, Duke of Illyria, and is a complicated love story. The humour of the play is provided mainly by the characters Malvolio, Sir Toby Belch and Sir Andrew Aguecheek. The play begins with one of Shakespeare’s best-known lines: ‘If music be the food of love, play on.’