polet

1. enthusiasm; zeal; drive
   Novi trener je radio sa mnogo poleta. — The new coach worked with a lot of enthusiasm.
   Posle povrede je izgubio polet. — After the injury he lost his drive.
2. (of economy, development) upswing; boom
   Turizam u Srbiji doživljava pravi polet. — Tourism in Serbia is experiencing a real boom.
3. formal (of a bird, plane) takeoff; taking flight
   Orao je raširio krila spreman za polet. — The eagle spread its wings, ready to take flight.

A plane's takeoff is usually called "poletanje".