sideline

/ˈsaɪdlaɪn/noun

A boundary line running along the edge of something, such as a sports field.

Example sentences

“The coach paced up and down the sideline during the match.”
“The ball rolled over the sideline, so the referee stopped play.”

The idiom 'on the sidelines' means watching without taking part. A sideline can also be a small extra business.

Synonyms for sideline

touchline

Related words

goalpostOne of the two upright posts that stand at either side of the goal, for example in soccer.dugoutA low, sheltered bench area beside a sports field where coaches and substitute players sit during a match.netA piece of material made of crossed strings or cord, used in sports such as tennis and volleyball or to form the back of a goal.scoreboardA big display at a game or competition that shows how many points each side has.stopwatchA watch that can be started and stopped to measure exactly how much time has passed.shinguardA protective pad worn over the front of the lower leg, especially during sports.