“Empire day” in Japanese
Short answer
Empire day in Japanese is “エンパイアデー” (enpaiadee). Full meaning: Empire Day.
Other ways to say “Empire day” in Japanese
三大節
sandaisetsu the three grand national holidays (Prayer to the Four Quarters, Empire Day, the Emperor's Birthday; pre-1927)
四大節
shidaisetsu the four grand national holidays (Prayer to the Four Quarters, Empire Day, the Emperor's Birthday, Emperor Meiji's birthday; 1927-1948)
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