1. wooden pegs or pins used to fasten planks to the frame of a wooden ship
Usage: nautical; plural form of treenail

Examples

• The shipwright hammered treenails through the oak planks to secure them to the hull.
• Traditional wooden boats were assembled using treenails instead of metal fasteners.
• The museum’s replica ship was built with authentic treenails made from locust wood.
• Salt water would cause the treenails to swell, creating a watertight seal.
• Archaeologists found well-preserved treenails in the sunken merchant vessel.
• The carpenter selected seasoned hardwood for making the treenails.