Karat has 2 different meanings across 1 category:
Noun
Noun
1
the unit of measurement for the proportion of gold in an alloy; 18-karat gold is 75% gold; 24-karat gold is pure gold
"She hesitated over the engagement ring because she wasn't sure if 14-karat or 18-karat gold would be durable enough for daily wear."
2
A unit of fineness or concentration of gold equalling 1/24 part of gold in an alloy.
"The jeweler explained that her ring was made of twenty-four-karat gold, ensuring it contained one hundred percent pure metal without any other alloys mixed in."
Broader Terms (hypernyms)