- (chiefly) Consisting of a fourth part, a quarter (1/4, 25%).
- Pertaining to an aspect of a quarter.
- (chiefly) Related to a three-month term, a quarter of a year.
- (historical) The watch: A quarter of the night, nominally 3 hours but varying over the year.
- A division or section of a town or other area, whether or not it constituted a fourth of the whole.
- (uncountable, obsolete except in phrase no quarter) Amity, friendship, concord; (now) accommodation given to a defeated opponent, mercy.
- A quarter-dollar, divided into 25 cents; the coin of that value minted in the United States or Canada.
- (historical) The quarter-yard, divided into 4 nails, an obsolete English unit of length long used in the cloth trade
- Any substantial fraction of something less than half, particularly:
- (military slang, now rare) A quartermaster; a quartermaster sergeant.
- (nautical) The aftmost part of a vessel's side, roughly from the last mast to the stern.
- Any fourth of something, particularly:
- (historical) The quarter-ton or tun, divided into 8 bushels, the medieval English unit of volume and weight named by the Magna Carta as the basis for measures of wine, ale, and grain
- (heraldry) A charge occupying a fourth of a coat of arms, larger than a canton and normally on the upper dexter side, formed by a perpendicular line from the top meeting a horizontal line from the side.
- (usually plural) A living place, from which:
- The part on either side of a horse's hoof between the toe and heel, the side of its coffin.
- (Now chiefly financial) A quarter of the year, 3 months; a season.
- (transitive) To divide into quarters.
- (transitive) To quartersaw.
- (intransitive) To lodge; to have a temporary residence.
- (transitive) To provide housing for military personnel or other equipment.
"Quarter the horses in the third stable."
- (obsolete) To drive a carriage so as to prevent the wheels from going into the ruts, or so that a rut shall be between the wheels.
"Every creature that met us would rely on us for quartering — De Quincey."