plural of INSET day

(UK, education) INSET day

(UK, education) A day during term-time on which pupils do not attend school, but staff take part in training or complete administrative tasks.

plural of Baker day

March 14th, an annual celebration of the mathematical constant π (pi).

(US) A civic holiday commemorating the anniversary of the Battles of Lexington and Concord, the first battles of the American Revolutionary War on April 19, 1775. It was previously celebrated on April 19, but since 1969 has been observed on the third Monday in April.

Columbus Day

(Canada, historical) Canada Day (before being renamed in 1982) / (New Zealand) A day commemorating the granting of national status to New Zealand.

(historical) A day on which contributions to some public or private charity or fund are solicited on the street, and tags given to contributors to wear as evidence of their having contributed.

plural of mufti day