V-J Day
the day on which the fighting with Japan officially ended in WWII (Aug. 15, 1945) or the day the surrender was formally signed (Sept. 2, 1945)
Origin of V-J Day
from v(ictory over) J(apan)V-J Day
noun
August 15, 1945, the day on which the Allies announced the surrender of Japanese forces during World War II.
Origin of V-J Day
V(ictory in) J(apan) Day