akt

1. act; official document
   Opština je donela novi akt o parkiranju. — The municipality adopted a new act on parking.
   Dopis stiže u vidu zvaničnog akta. — The letter arrives as an official document.
2. formal act; deed
   Napad je osuđen kao teroristički akt. — The attack was condemned as a terrorist act.
3. (in art) nude
   Na izložbi su bili i aktovi poznatog slikara. — The exhibition also featured nudes by a famous painter.
4. formal (in polni akt) sexual intercourse
   Lekar je objasnio rizike nezaštićenog polnog akta. — The doctor explained the risks of unprotected intercourse.
5. (of a play, opera, ballet) act
   Posle drugog akta opere sledi pauza. — After the second act of the opera there is an intermission.

An act of a play is usually called čin, not akt.