kuma

1. (at a wedding) female wedding witness
   Moja najbolja drugarica biće mi kuma na venčanju. — My best friend will be my witness at the wedding.
2. (at a christening) godmother
   Kuma je detetu donela zlatni lančić. — The godmother brought the child a gold chain.
3. (of a family bond) a woman related to one by godparenthood; the wife of one's kum
   Za slavu nam dolaze kum i kuma. — Our kum and his wife are coming for the slava.

In Serbia godparenthood is a very important bond: the wedding witnesses usually also become the godparents of the couple's children.