This is the 500th most frequent Croatian word.
počela
The Croatian word "počela" means "began" or "started" (past tense of "početi").
In this sentence, 'počela' is used to indicate the commencement of an action (starting to read).
Jučer je Ana počela čitati novu knjigu.
Yesterday, Ana started reading a new book.
Here, 'počela' indicates the beginning of an activity (starting to work).
Prošle godine počela je raditi u novoj tvrtki.
Last year, she started working at a new company.
In this example, 'počela' signifies the initiation of a natural phenomenon (starting to rain).