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 The ball dropped onto the sideline of Clay's court. The Indianapolis Star, 28 Sep. 2022 Bell was near the sideline, 5 yards behind a cornerback. Jeff Potrykus, Journal Sentinel, 28 Sep. 2022 Looking across the field and seeing a former Crimson Tide player on the opposing sideline won’t be weird at this point in the transfer portal era. Michael Casagrande |, al, 27 Sep. 2022 While Phoenix's historic season came to a crushing end, Ayton's sideline interaction with Suns coach Monty Williams became the focal point of the loss. Duane Rankin, The Arizona Republic, 26 Sep. 2022 Everyone is healthy and participated in practice except TCU transfer Jaedon LeDee, who was ill and sat on the sideline wearing a mask. Mark Zeigler, San Diego Union-Tribune, 26 Sep. 2022 That’s when Jordan Addison caught a 21-yard sideline bullet from Williams and slipped into the end zone. Bill Plaschke, Los Angeles Times, 25 Sep. 2022 The Aggies botched the extra point as Arkansas maintained a 14-13 lead, but the weird play seemed to put good vibes on the Texas A&M sideline. Tom Murphy, Arkansas Online, 25 Sep. 2022 At the beginning of the second quarter, defensive lineman Quinnen Williams and defensive line coach Aaron Whitecotton got into a sideline shouting match. Dennis Waszak Jr., Hartford Courant, 25 Sep. 2022 Recent Examples on the Web: Verb Rapidly rising mortgage rates threaten to sideline even more homebuyers after more than doubling in 2022. Elvia Limón, Los Angeles Times, 30 Sep. 2022 Rapidly rising mortgage rates threaten to sideline even more homebuyers after more than doubling in 2022. CBS News, 22 Sep. 2022 Pujols hammered 20 in the first round to sideline top seed Kyle Schwarber. Bryce Millercolumnist, San Diego Union-Tribune, 20 Sep. 2022 And after giving up a tremendous number of draft picks and players to add Russell Wilson to its roster, the Denver Broncos opted to sideline him and go for a 64-yard field goal. Chris Morris, Fortune, 18 Sep. 2022 Average long-term U.S. mortgage rates climbed over 6% this week for the first time since the housing crash of 2008, threatening to sideline even more homebuyers from a rapidly cooling housing market. Matt Ott, Chicago Tribune, 15 Sep. 2022 The oba accused the governor’s camp of plotting to sideline him. David Frum, The Atlantic, 14 Sep. 2022 By focusing on individuals, the structure of My Life allows the band to bury or sideline certain parts of their story. Will Hermes, Rolling Stone, 29 Aug. 2022 Despite the complicated internal situation, one that can sideline even the biggest of K-pop acts, the group has returned for a full-length album of new music led by a single that captures what always made the girl group so loved. Jeff Benjamin, Billboard, 5 Aug. 2022 See More

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.

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

1 Oct 2022

Cite this Entry

“Sideline.” Dictionary, Merriam-Webster, Accessed 7 Oct. 2022.

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More Definitions for sideline


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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