Bow
The front of the shell and first part of the shell to cross the finish line. Rowers sit with their backs to the bow. The coxswain sits facing the bow.
Bow Ball
For safety reasons, there is a rubber ball attached to the end of the bow. This is to protect the shell in case of collision.
Bow Coxed
When the coxswain is positioned in the bow with all of the rowers behind them. Usually the coxswain slides down into the bow deck. The advantage is that the weight of the coxswain is lower in the shell. This can be seen on Fours and Quads.