side·​line | \ ˈsīd-ˌlīn How to pronounce sideline (audio) \

Definition of sideline

 (Entry 1 of 2)

1 : a line at right angles to a goal line or end line and marking a side of a court or field of play for athletic games
2a : a line of goods sold in addition to one's principal line
b : a business or activity pursued in addition to one's regular occupation
3a : the space immediately outside the lines along either side of an athletic field or court
b : a sphere of little or no participation or activity usually used in plural


sidelined; sidelining; sidelines

Definition of sideline (Entry 2 of 2)

transitive verb

: to put out of action : put on the sidelines

Examples of sideline in a Sentence

Noun She makes and sells jewelry as a sideline.
Recent Examples on the Web: Noun There was no Tale of the Tape available for Minnesota United coach Adrian Heath's sideline kerfuffle with looming Seattle defender Abdoulaye Cissoko during Sunday's second half, but it would have been lopsided. Jerry Zgoda, Star Tribune, 18 July 2021 He was overshadowed a bit in that game by Duke QB signee Riley Leonard on the other sideline, but Byrd was still impressive. Ben Thomas |, al, 14 July 2021 Worse, a clique of the 18th Street Gang was starting a sideline racket extorting the street vendors. Los Angeles Times, 13 July 2021 The following season, the then-23-year-old passer helped deliver the only Super Bowl title of Cowher's 15-year run on the Pittsburgh sideline. Nate Davis, USA TODAY, 13 July 2021 Upon being ejected, Durón went to the sideline and Gracia picked up his flag and began walking upfield. New York Times, 12 July 2021 The broadcast world is changing, as more and more women get opportunities beyond the traditional sideline reporting. Ann Killion, San Francisco Chronicle, 12 July 2021 The network decided to take Nichols off the sideline reporting for the NBA Finals and replace her with another rising star in Malika Andrews., 11 July 2021 The Patriots were stripped of a third-round pick in the 2021 NFL Draft and fined $1.1 million as part of the organization's penalty for filming the Bengals' sideline in Dec. 2019. Dave Clark, The Enquirer, 10 July 2021 Recent Examples on the Web: Verb Such discipline in Bauer’s case would sideline him until this time, next year, at which point the Dodgers could welcome him back. Gabe Lacques, USA TODAY, 3 July 2021 In some smaller counties, the mandate would sideline the use of election equipment purchased for use last November. John Myers, Los Angeles Times, 17 June 2021 If Glasnow chose to undergo Tommy John surgery, that would sideline him this season and could prevent him from pitching next year, too. Creg Stephenson |, al, 16 June 2021 If Glasnow chooses to undergo Tommy John surgery, that would sideline this season and could prevent him from pitching next year, too., 15 June 2021 In seeking to prop up the Palestinian Authority, the Biden administration aims to sideline Hamas, the militant group that controls Gaza, which the United States considers a terrorist organization. Lara Jakes,, 25 May 2021 The nasal fracture or stitches didn't sideline Johnson, though. Duane Rankin, The Arizona Republic, 28 Apr. 2021 The team's trainers advised giving Refsnyder a day off to recover from the collision, but the quad injury is not expected to sideline him for long. Phil Miller, Star Tribune, 1 June 2021 Texas moved RHP Hunter Wood from the 10-day IL to the 60-day IL with a mild UCL sprain that is expected to sideline him for an additional two months. Sam Blum, Dallas News, 4 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sideline.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of sideline


circa 1862, in the meaning defined at sense 1


1913, in the meaning defined above

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The first known use of sideline was circa 1862

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Last Updated

21 Jul 2021

Cite this Entry

“Sideline.” Dictionary, Merriam-Webster, Accessed 29 Jul. 2021.

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More Definitions for sideline



English Language Learners Definition of sideline

 (Entry 1 of 2)

: a line that marks the outside edge of a sports field or court
: the space outside the area where a game is played on a field or court
: a job that is done in addition to your main job



English Language Learners Definition of sideline (Entry 2 of 2)

: to prevent (a player) from playing in a game especially because of injury, illness, etc.


side·​line | \ ˈsīd-ˌlīn How to pronounce sideline (audio) \

Kids Definition of sideline

1 : a line marking the side of a playing field or court
2 : a business or a job done in addition to a person's regular occupation

More from Merriam-Webster on sideline

Nglish: Translation of sideline for Spanish Speakers

Britannica English: Translation of sideline for Arabic Speakers


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