An ounce is any of several units of mass
Ounce may also be: Ounce-force, a unit of force, one sixteenth of a pound-force Fluid ounce, any of several units of volume Ounce, alternative name for the snow leopard Ounce, the codename for the Nintendo Switch 2 Ounce, in heraldry the same feline as the leopard (heraldry) Ounce (roman coin)
See also Troy ounce