Definition of boundary umpire in English:

boundary umpire

noun

Australian Rules Football
  • An umpire on the boundary line who signals when the ball is out and throws it back in to restart play.

    • ‘Also I loved the boundary umpire's haircut - it was perfectly square.’
    • ‘There was even a question about the boundary umpire he clocked in 1980.’
    • ‘I firmly believe that I was sacked from my job as a boundary umpire for being TOO fair.’
    • ‘In his later years, when he was the boundary umpire, he carried a flask of whiskey in his sock to help him see off the cold.’
    • ‘There are also two boundary umpires, two goal umpires, and, in effect, a ‘video umpire’.’