An ounce is a unit of measurement used primarily in the British and American systems. It can refer to weight, where one ounce equals approximately 28.35 grams, or to volume, particularly in fluid measurements.

Ounce derives from the Ancient Roman uncia (meaning: a twelfth), a unit in the Ancient Roman units of measurement weighing about 27.4 grams or 96.7% of an avoirdupois ounce, [1] that was one-twelfth (1⁄12) of the Roman pound (libra). [2]

The meaning of OUNCE is a unit of weight equal to 1/12 troy pound. How to use ounce in a sentence.

What is the difference between troy oz vs ounce? Learn about the differences and how to convert between the two.

An ounce is a unit of weight in the imperial system and the US customary system, with one ounce equal to approximately 28.35 grams. Ounces are often used to measure smaller quantities of ingredients in cooking or for measuring the weight of small items like jewelry or postage.

Ounce, a unit of measurement commonly used for both weight and volume, is a unit of weight and volume in the English and US customary systems of measurement. It is abbreviated as "oz".

ounce, unit of weight in the avoirdupois system, equal to 1/16 pound (437 1/2 grains), and in the troy and apothecaries’ systems, equal to 480 grains, or 1/12 pound.

An ounce is a unit of weight used in Britain and the USA. There are sixteen ounces in a pound and one ounce is equal to 28.35 grams.