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Y-Day. In DICTIOUS you will not only get to know all the dictionary meanings for the word
Y-Day, but we will also tell you about its etymology, its characteristics and you will know how to say
Y-Day in singular and plural. Everything you need to know about the word
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Y-Day will help you to be more precise and correct when speaking or writing your texts. Knowing the definition of
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English
Proper noun
Y-Day
- (historical) 1 March 1946, the planned date for the Allied invasion of the Kantō Plain to conquer Tokyo in World War II (cancelled following Japan's unconditional surrender in September 1945).
Coordinate terms