trkačica

1. (in athletics) runner
   Ona je najbrža trkačica u našem klubu. — She is the fastest runner in our club.
   Trkačica je pobedila na maratonu u Beogradu. — The runner won the Belgrade marathon.
2. (in motor or cycle racing) racer; racing driver
   Mlada trkačica vozi za poznati tim. — The young racer drives for a well-known team.

The masculine form is trkač.