The first day of May, a festival celebrating the beginning of the spring season; originally, and still among neopagans, a fertility celebration.

The French national holiday celebrated on 14 July each year. It commemorates the 1790 Fête de la Fédération, held on the first anniversary of the storming of the Bastille on 14 July 1789; the Fête de la Fédération was seen as a symbol of the uprising of the modern French "nation".

(Britain) Each of the four days customarily regarded as starting a new quarter year, on which rents etc are often due.

(US, informal) Thanksgiving; an American holiday celebrated on the fourth Thursday of November.

Each of the four days customarily regarded as starting a new quarter year, formerly established as a time for rents and other payments to be due, tenancies to begin and end, and various meetings and assemblies to be held.

A day when a school or other workplace is closed due to weather, especially snow.

(biology) A light-dark cycle that has more or less than 24 hours created artificially for testing the rhythms of organisms.

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

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

25th March, an English quarter day. / 25th March, Christian holy day, the Annunciation of the Virgin Mary.