The definition of sibilance is when something has an s or sh sound. An example of sibilance is the hissing of a snake.
A wrench (or spanner outside of North America) is a tool used to provide grip and mechanical advantage in applying torque to turn objectsâusually rotary fasteners, such as nuts and boltsâor keep them from turning. In Commonwealth English (excluding Canada), spanner is the standard term.
A torque wrench is a tool used to precisely apply a specific torque to a fastener such as a nut or bolt. It is usually in the form of a socket wrench with special internal mechanisms. It was invented by Conrad Bahr in 1918 while working for the New York City Water Department.