According to the French, it's disembarkation. The Army also cited a Time magazine report saying the D stands for day as a code. The operation is D-4 or four days away or D+4 or four days after.

Mark Calhoun, a senior historian at the National WWII Museum in New Orleans, does not ... Utah Beach on D-Day, June 6, 1944. (Wikimedia Commons) What the "D" in D-Day actually stands for has ...

But what exactly does the term ‘D-Day’ stand for? Essentially, the term D-Day is used by the Armed Forces to refer to the beginning of an operation. The ‘D’ stands for ‘Day’ and there ...

This means that D-Day actually stands for ‘Day-Day.’ According to the Royal British Legion, the phrase ‘D-Day’ was used fairly often before the Allied invasion in June 1944. After this ...