ply definition

1. one of the strands twisted together to make yarn or rope or thread; often used in combination
• examples: three-ply cord
• examples: four-ply yarn
2. (usually in combinations) one of several layers of cloth or paper or wood as in plywood
3. apply oneself diligently
• examples: Ply one's trade
4. travel a route regularly
• examples: Ships ply the waters near the coast
5. join together as by twisting, weaving, or molding
• examples: ply fabric
6. wield vigorously
• examples: ply an axe
7. use diligently
• examples: ply your wits!