Linesman
Pronunciation
Full definition of linesman
Noun
linesman
(plural linesmen)- (football, dated) An assistant referee.
- (tennis, dated) A male line judge.
- (ice hockey) An official whose primary task is to watch the blue line and determine when there has been an offside.
- (American football) 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.
Usage notes
In soccer and tennis the term linesman is considered dated because not all assistant referees and line judges are male.