The word "Tenaille" is a noun used to refer to a type of fortification that consists of a long, narrow trench or ditch that is typically dug in front of a defensive wall or rampart. There are several synonyms for the word "Tenaille," including traverse, sally-port, and covert-way. A traverse is a type of fortification that is similar to a Tenaille, but it is typically shorter and wider. A sally-port is an opening in a fortification that is used to allow soldiers to exit quickly and attack the enemy. Finally, a covert-way is a type of fortification that is designed to provide cover for soldiers as they move between different parts of a defensive wall or rampart.