Bow may refer to:
Bow and arrow (), a weapon system that uses elasticity to propel arrows, its use is archery
Bow (ship) (), the foremost point of the hull of a ship or boat
A circle is a simple closed shape in Euclidean geometry. It is the set of all points in a plane that are at a given distance from a given point, the centre; equivalently it is the curve traced out by a point that moves so that its distance from a given point is constant. The distance between any of the points and the centre is called the radius.