VJデーMeanings1nounV-J DayRefers to the day of Japan's surrender in World War II, observed on August 15 (announcement) or September 2 (formal signing).VJデーは、日本にほんでは終しゅう戦せん記き念ねん日びとして知しられている。V-J Day is known in Japan as the anniversary of the end of the war.