What is another word for treenail?
Pronunciation: [tɹˈiːne͡ɪl] (IPA) 
A treenail is a wooden peg that is used in shipbuilding which holds the planks of the ship together. It is also known as a tree nail, trunnel, trenail, or treen. These words are often used interchangeably in the field of shipbuilding. Tree nail and trenail are the most commonly used synonyms for treenail. The usage of these words may differ depending on the region and the type of ship being built. Trunnel is more commonly used in North America, while treen is more popular in the United Kingdom. Nonetheless, all of these terms refer to the same basic wooden peg used in the construction of ships.
