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Use "linespeople" in a sentence
"In other words, the linespeople were correct twice as often as the player."
"Some 30 or 40 years ago, linespeople called such penalties about as often as players nowadays use wooden rackets, said Brian Earley, the United States Open tournament referee since 1992."
"McEnroe used anger to pump himself up, but his anger was directed outward, at umpires and linespeople."