zamenica

1. (in grammar) pronoun
   Lične zamenice se menjaju po padežima. — Personal pronouns change by case.
   Ovde treba upotrebiti povratnu zamenicu „se“. — You need to use the reflexive pronoun "se" here.
2. (of a woman) deputy; substitute
   Zamenica direktora danas vodi sastanak. — The deputy director is chairing the meeting today.

In the sense "deputy", the masculine counterpart is zamenik.