vrtlog

1. (of water, air) whirlpool; vortex
   Čamac je upao u vrtlog i prevrnuo se. — The boat got caught in a whirlpool and capsized.
2. whirl; maelstrom
   Upao je u vrtlog dugova i problema. — He got sucked into a maelstrom of debts and problems.
   U vrtlogu događaja zaboravila sam na rođendan. — In the whirl of events I forgot about the birthday.