SPECTATOR

[noun] [C] - a person who watches an activity, esp. a sporting event, without taking partThe stadium was packed with thousands of cheering spectators.Several spectators at the air show were killed when a plane crashed.After she had given evidence at the trial, she returned to the courtroom as a spectator."We cannot become participants in the war," said the Prime Minister, "but nor must we be mere spectators."A spectator sport is one which people go to watch.Football is probably the biggest spectator sport.