Shoemakers are commonly called cobblers but correctly speaking a cobbler is a shoe repairmen. A shoemaker is a cordwainer – they also made leather bottles and harnesses.
The working section of a piano is called the action.
A depth of 2 fathoms (3,6 metres) is called a Mark Twain. Originally a fathom was the space reached by with two arms outstretched.
In the early days of film making, people who worked on the sets were called movies. The films were called motion pictures.
