formerly, a day of the week on which a household’s laundry would be washed and dried; traditionally a Monday in Britain

(chiefly Britain and Ireland) Shrove Tuesday; in some traditions the day for pancake races for charity.

(Britain, Ireland) A day on which a registered charity raises money, usually by selling small lapel flags. / (software) A day designated for changing to an incompatible system.

Victory in Europe day; the anniversary of the end of the Second World War in Europe, 8 May 1945.

Lasting throughout the whole day. / Available throughout the whole day.

(idiomatic, abstractly) Healthy eating and living using traditional temperate-zone fresh foods.

(military) A day for manoeuvres and tactical exercises in "the field". / A school day for athletic events; a sports day. / A day of class taken away from school for a field trip.

(historical) 6 June 1944, the date when the Allies invaded western Europe in World War II.

(figuratively) The date of any major event planned for the future.

An annual celebration commemorating the anniversary of a nation's assumption of independent statehood.