The term “bounce angle” describes the angle between the the sole of the club, and the ground. It is an indication of how much the sole, or bottom-most part, of the club head lifts the leading edge off the ground. A high bounce angle (angles of 12-15o) indicates a sole which lifts the leading edge significantly, whereas a club with little or no bounce allows the leading edge to contact the ground without interference.
The purpose of the bounce angle is to control how easily wedges, with their steep angles of attack, penetrate the ground (or sand) under the ball. A low- or zero-bounce club will tend to cut into the ground readily. The use of a club with more bounce will allow the sole of the club to impact first, keeping the front edge from digging into the surface by causing it to “bounce” off the surface instead.
In practical terms, lower bounce wedges are for short grass and tight lies, whereas more bounce is generally used in deep rough or sand.
