Once every quarter year (three months).

A periodical publication that appears four times per year.

(military) An officer whose duty is to provide quarters, provisions, storage, clothing, fuel, stationery, and transportation for a regiment or other body of troops, and superintend the supplies.

To act as a quartermaster

(nautical) The aft part of the upper deck of a ship; normally reserved for officers

(sports) One of the four competitions in a knockout tournament whose winners go on to play in the two semifinals.

(American football, Canadian football) An offensive back whose primary job is to pass the ball in a play.

(American football) To play the position of quarterback. / (by extension) To lead a team or group; to be primarily responsible for some group project or activity.

A wooden staff of an approximate length between 2 and 2.5 meters, sometimes tipped with iron, used as a weapon in rural England during the Early Modern period.

A quarterly payment or allowance, tax, pension, or wage paid or received. / The provision of quarters (as for troops), or the cost of it.