(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.

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

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

(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.

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

A holiday celebrated in the United States commemorating the country's independence from Great Britain, celebrated each year on the 4th of July.

An extra day intercalated into a year, especially the day intercalated into the Julian calendar every fourth year and into the Gregorian calendar every fourth year excepting centuries not divisible by 400, usually reckoned as February 29th.

(idiomatic) Said in reply to something that one believes will never happen.

The interval between consecutive high tides at a given place.