Peen (noun)

The rounded, flat or cylindrical end of a hammer or tool, typically used for striking or shaping metal.

Origin:

The word "peen" is derived from the german word "pein" which means hammer or mallet. peen refers to the rounded, flat or cylindrical end of a hammer or tool, typically used for striking or shaping metal.

Examples:

1. The blacksmith used the peen of the hammer to shape the metal.
2. The peen of the hammer was used to create a concave shape.
3. The peen end of the hammer is used for shaping and spreading metal.
4. The peen of the hammer is used to stretch the metal.
5. The peen of the hammer is used to create a convex shape.