Other forms: foremen
On many job sites, the boss or supervisor is called the foreman. If you get a job on a construction crew, the foreman is the person in charge.
While the supervisor in an office, hospital, or school has a totally different title, in manual labor it's common to use the word foreman. This is true in factories and plants, as well as on ranches and railroads. Even on a jury there's a foreman, the member who announces the group's verdict. A woman in one of these roles might be called foreman, forewoman, or foreperson. A simpler, gender-neutral compromise is to use "supervisor" instead.