navijati

1. (za + acc.) to root for; to cheer for; to support
   Za koji klub navijaš? — Which club do you support?
   Cela porodica navija za Zvezdu. — The whole family roots for Zvezda.
2. (of a clock, alarm) to wind; to set
   Deda svako veče navija stari sat. — Grandpa winds the old clock every evening.
   Uvek navijam budilnik na sedam. — I always set my alarm for seven.
3. colloq. (of music, sound) to turn up
   Komšije opet navijaju muziku do daske. — The neighbours are blasting their music at full volume again.
4. (thread, hair) to wind; to wrap around
   Navijam konac na kalem. — I'm winding the thread onto the spool.
   Ona svako jutro navija kosu na viklere. — She puts her hair in rollers every morning.

In the sense 'to support' it takes za + accusative: navijati za Partizan.