Any of those days of a week on which work is done. The official working days in many countries are Monday to Friday (even though many people work on weekends).

A day of vacation; a day when one does not go to work, school, etc.

The day after Christmas; the 26th of December.

One's principal job; one's regular means of income.

An annual festival held in Canada and the USA on February 2 in which the arrival time of the spring season is predicted by whether or not a certain groundhog can see its shadow.

(informal) A situation in which events appear to be repeating themselves in a cyclical fashion.

(informal) To live out a situation in which events appear to be repeating themselves in a cyclical fashion.

Alternative spelling of dayroom

plural of day room

(dated, UK, nautical, idiomatic) In British naval tradition, a day of the week when galley kitchens served no meat on board ship. / (UK, nautical, idiomatic) A picnic or cookout for the ship's crew.