D-Day (noun) - a date on which something important is expected to happen (From the name given to 6 June 1944, the day on which the British, US and other armies landed on the beaches of northern France in the Second World War)
D-Day (noun) - a date on which something important is expected to happen (From the name given to 6 June 1944, the day on which the British, US and other armies landed on the beaches of northern France in the Second World War)