Bowling refers to a series of sports or leisure activities in which a player rolls or throws a bowling ball. In indoor bowls, the target is usually to knock over pins. In outdoor variations, the aim is usually to get the ball as close to a target ball as possible. The indoor version of bowling is often played on a flat wooden or other synthetic surface, while outdoor bowling the surface may be grass, gravel or a synthetic surface.
Ten-pin bowling is a competitive sport in which a player (the "bowler") rolls a bowling ball down a wooden or synthetic (polyurethane) lane with the objective of scoring points by knocking down as many pins as possible.
Bowls (also lawn bowls, variants include flat-green bowls and crown-green bowls) is a sport in which the objective is to roll biased balls so that they stop close to a smaller ball called a "jack" or "kitty". It is played on a pitch which may be flat (for "flat-green bowls") or convex or uneven (for "crown-green bowls").