A large three-masted sailing ship with a square rig and usually two or more decks, used from the 15th to the 17th century especially by Spain as a merchant ship or warship: Several Spanish sailors were hired to sail on the new galleon.

The galleon sailed into the harbor after a long voyage.

A unit of volume in the U.S. Customary System, used in liquid measure, equal to 4 quarts (3.785 liters): Deloris bought a gallon of fresh milk to take home from the local store.

A narrow band of embroidery, lace, braid, or silver or gold thread, used as a trimming on clothes or upholstery: Whenever the sisters next door go out, they have a custom of wearing clothes with edgings of galloon on their dresses, coats, shoes, and hats; all of which attract a great deal of attention because of their very colorful clothing styles.