An arrow is a shape used to point to something. Arrows look like this: -->. "Double-headed" arrows look like this: <-->.
An arrow is a projectile fired with a bow. A bow and arrow is a weapon used before medieval times and later. For thousands of years, people all over the world have used bows and arrows for hunting and for defense. Arrows have a sharp point at one end and usually a flight at the other end. The flight is usually made of feathers and helps the arrow go through the air straight.