A day marking a country's establishment as a sovereign entity, typically a celebration of its independence, revolution or former ruler.

One person's working time for a day, or the equivalent, used as a measure of how much work or labor is required or consumed to perform some task.

(US) A day when one is permitted to not attend work in order to go on a vacation or attend to other matters.

Alternative spelling of daytime

plural of day pupil

(religion) The final and eternal judgment by God of all nations; Final Judgment. / (by extension) Any time or event at which responsibility will be assigned.

plural of day boy

(University of Cambridge) A religiously or academically significant day; one on which festal academic dress should be worn.

A day on which a cruise ship remains at sea all day (i.e. passengers cannot leave the ship).

The day when graduating medical-school students find out where they will serve as residents. / (sports) The day on which a sporting event takes place.