day
— Noun
– English
～ the recurring hours when you are not sleeping (especially those when you are working); "my day began early this morning"; "it was a busy day on the stock exchange"; "she called it a day and went to bed"
day
— Noun
– English
～ a period of opportunity; "he deserves his day in court"; "every dog has his day"
Day
— Noun
– English
～ United States writer best known for his autobiographical works (1874-1935)
d-day
— Noun
– English
～ date of the Allied landing in France, World War II