This is the 926th most frequent Serbian word.
крупањ
"Крупањ" is a town in Serbia.
In this sentence, 'крупањ' is the proper noun referring to a specific town in Serbia, used as the subject of the sentence.
Крупањ је град у Србији.
Krupanj is a town in Serbia.
'Крупни' here modifies 'покрети', denoting the strides or movements, and conveys a sense of largeness or gravity to the actions.
Његови покрети су крупни и одлучни.
His movements are large and decisive.
The word 'крупна' is an adjective form describing the physical size of a person's figure, similar in root to 'крупањ'. However, context entails a different connotation.