1. a piece of material attached to or forming the heel of a shoe or boot
Usage: commonly used in shoemaking and repair
2. in firearms, the rear part of the stock of a rifle or shotgun that rests against the shooter's shoulder
Usage: technical term in firearms

Examples

• The cobbler replaced the worn heelpiece on my favorite boots.
• A rubber heelpiece provides better grip on slippery surfaces.
• The rifle's heelpiece was padded for comfort during extended shooting sessions.
• The leather heelpiece was cracked and needed repair.
• New heelpieces can extend the life of shoes significantly.