Does the d in d day stand for death?

no to this day no one is entirely sure why it is called d-day, historians believe it was d-day was for decision day because it would decide the rest of the war, the only person who knew was general Dwight Eisenhower who took the secret to his grave.

Eisenhower took this secret to his grave because D-Day stood for death day. Ask yourself 'Why would Eisenhower take 'Decision- day' to his grave?