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
2
a
: 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
3
a
: 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
Examples of sideline in a Sentence
Noun
She makes and sells jewelry as a sideline.
Recent Examples on the Web
Xinghui Kok, USA Today, 26 Oct. 2025
However, Fox Sports sideline reporter Erin Andrew confirmed that Barkley was questionable to return after suffering a groin injury.
—Michael Gallagher, MSNBC Newsweek, 26 Oct. 2025
Robert Marvi, MSNBC Newsweek, 27 Oct. 2025
Hull seemed perplexed by this as an alarming number of season-ending injuries continued to pile up, sidelining five of her own Indiana Fever teammates before their unexpected—and frankly remarkable—playoff run.
—Emily Tannenbaum, Glamour, 27 Oct. 2025
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Noun
Treasury Secretary Scott Bessent and Trade Representative Jamieson Greer met with Chinese Vice Premier He Lifeng and top trade negotiator Li Chenggang on the sidelines of the ASEAN summit in Kuala Lumpur for a fifth round of in-person discussions since May.
—Xinghui Kok, USA Today, 26 Oct. 2025
However, Fox Sports sideline reporter Erin Andrew confirmed that Barkley was questionable to return after suffering a groin injury.
—Michael Gallagher, MSNBC Newsweek, 26 Oct. 2025
Verb
Defensive end Nick Bosa and middle linebacker Fred Warner are out for the year with a torn ACL and ankle injury, respectively, and Bryce Huff, their other starting DE, is currently sidelined with a hamstring ailment.
—Robert Marvi, MSNBC Newsweek, 27 Oct. 2025
Hull seemed perplexed by this as an alarming number of season-ending injuries continued to pile up, sidelining five of her own Indiana Fever teammates before their unexpected—and frankly remarkable—playoff run.
—Emily Tannenbaum, Glamour, 27 Oct. 2025
See All Example Sentences for sideline
Cite this Entry
“Sideline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sideline. Accessed 30 Oct. 2025.
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