fokusirati

1. (fokusirati se na + acc.) to focus; to concentrate
   Moram da se fokusiram na ispit. — I need to focus on the exam.
   Tim se fokusirao na odbranu. — The team focused on defence.
2. (attention, effort) to focus; to direct
   Firma je fokusirala sva sredstva na novi proizvod. — The company focused all its resources on the new product.
3. (of a camera, lens) to focus
   Kamera ne može da fokusira u mraku. — The camera can't focus in the dark.

In the sense "to concentrate" it is used with "se" and "na" + accusative.