ounce

ounce /ˈaʊns/ noun
plural ounces
ounce
/ˈaʊns/
noun
plural ounces
Britannica Dictionary definition of OUNCE
1 
[count] : a unit of weight equal to ¹/₁₆ pound (about 28 grams)
2 
[count] : fluid ounce
3 
[singular] informal : a very small amount of something