preporuka

1. recommendation; advice
   Po preporuci lekara, prestao je da puši. — On his doctor's recommendation, he quit smoking.
   Hvala na preporuci, restoran je odličan. — Thanks for the recommendation, the restaurant is great.
2. (for a person) reference; letter of recommendation
   Profesor mi je napisao preporuku za master studije. — My professor wrote me a reference for my master's.
   Posao je dobila na preporuku prijatelja. — She got the job on a friend's recommendation.

Common phrases: po preporuci (on the recommendation of) and pismo preporuke (letter of recommendation).