any division of quantity accepted as a standard of measurement or exchange

any of the unit of the troy system of weights

any weight unit used in pharmacy; an ounce is equal to 480 grains and a pound is equal to 12 ounces

a unit of weight used in some Spanish speaking countries

any of various units of weight used in southeastern Asia (especially a Chinese measure equal to 500 grams)

the weight of a liter of hydrogen (at 0 centigrade and 760 millimeters pressure)