(UK) A male day pupil.

(idiomatic, sometimes humorous) To rescue a person or situation from imminent danger or major failure.

A holiday in celebration of fatherhood, or to honor fathers, celebrated on the third Sunday of June in most of the world's countries. See Wikipedia:Father's Day:Dates.

(US, Canada) A day in honor of one's mother on the second Sunday in May in the United States and Canada.

A student who attends a boarding school but does not board there, continuing to live at home

(temporal location, idiomatic, informal) In the distant past; especially, at a time fondly remembered.

The day on which the euro became the official currency in much of Europe — 1st January 2002. / Election Day.

(US) A Utah state holiday celebrating the arrival of Mormon pioneers in what became Salt Lake City, Utah, in 1847.

(informal) Wednesday.

Alternative form of judgement day