This is the 985th most frequent Croatian word.
brže
"Brže" means "faster" in English.
'Brže' is again used as an adverb, modifying the verb 'run' to suggest increasing speed in action to achieve timeliness.
Trči brže kako bi stigao na vrijeme.
Run faster to arrive on time.
Here, 'brže' is used as an adverb to describe the way the action (finishing work) should be done—faster.
Molim te, brže završavaj svoj posao.
Please, finish your work faster.
In this sentence, 'brže' functions as an adverb comparing the speed of cars now to before—indicating a relative increase in speed.