A day marked in red on calendars; a church feast day. / (idiomatic) A particularly significant day; a day of personal or sectarian celebration.

(Christianity) In Christian tradition, the annual feast day celebrating the life of all saints, taking place on the first day of November, or (in the Greek church) on the first Sunday after Pentecost.

Alternative form of St. George's Day

(idiomatic) To acknowledge someone; to give someone respect or attention; to tip one's hat

A Christian feast day, 1st November, honouring the saints (or, as the name implies, "hallows"); the day after Halloween.

April 1, a day when practical jokes are traditionally played

the average length of a solar day, used for practical timekeeping

(cricket) A form of cricket, played on one day, in which each side bats only once. Each side's innings finishes when either their allotted number of overs has been completed, or all ten wickets have been lost.

(cricket) a one-day match played between teams representing the Test nations; a similar match in a tournament such as the World Cup

(cricket) a game of cricket played on one day; each side batting once