1. a double-bladed ax with one blade shaped like an adze, used for cutting mortises
Usage: archaic; carpentry

Examples

• The medieval carpenter used a twibil to cut precise mortises in the wooden beams.
• Among the old woodworking tools in the museum was a well-preserved twibil.
• The craftsman reached for his twibil to shape the joint properly.
• Historical records show that twibils were essential tools for timber framing.
• The blacksmith forged a new twibil for the village carpenter.