Talking about wedges, there are a lot of terms of which people don't know the meaning; with this picture you can understand what are bounce, camber, etc...
IMPORTANCE OF BOUNCE
Bounce keeps the club from digging, allowing it to glide through the turf or sand, which helps you execute better shots in a variety of conditions.
Effective bounce is an indicator of how the wedge will play and is determined by bounce angle, sole width, sole grind and camber. All Titleist Vokey wedges are marked with effective bounce.
The measured angle between the leading edge and the lowest point on the sole.