Linesman
Part of speech: noun
Definition: An assistant referee. An official who calls shots that pitch out of bounds, and judges foot faults. An official whose primary task is to watch the blue line and determine when there has been an offside. An official whose primary task is to determine whether there has been a line of scrimmage violation. A person employed to work on electrical lines; a lineman.
Lineman
Part of speech: noun
Definition: a person who installs and repairs overhead cables (either power or telephone); a linesman