tomboy

noun4

1. •
   A girl who behaves in a typically boyish manner.

   • His sister, his dearest and only playmate, is a tomboy at heart.
2. •
   (Philippines, informal) A butch lesbian.
3. •
   (no longer used) A rude, boisterous boy.
4. •
   (no longer used) An immodest or bold woman.