ounce ounce /ˈaʊns/

noun

1. () A unit of apothecary weight equal to 480 grains or one twelfth of a troy pound  ( apothecaries' ounce , troy ounce , ounce )
   a unit of apothecary weight equal to 480 grains or one twelfth of a troy pound
    She poured herself a glass of juice that was 8 ounces
   She poured herself a glass of juice that was 8 ounces
   
2. Large feline of upland central Asia having long thick whitish fur  ( ounce , Panthera uncia , snow leopard )
   large feline of upland central Asia having long thick whitish fur
   
   
3. A unit of weight equal to one sixteenth of a pound or 16 drams or 28.349 grams  ( ounce , oz. )
   a unit of weight equal to one sixteenth of a pound or 16 drams or 28.349 grams