countersuit
noun
coun·ter·suit
ˈkau̇n-tər-ˌsüt 
variants
or less commonly counter-suit
plural countersuits also counter-suits
: an opposing lawsuit
especially
: a claim asserted by an opposing party in a lawsuit (such as a defendant) against the party bringing the original lawsuit (such as a plaintiff) : counterclaim
decided to file a countersuit against her accuser
The current appeal results from a patent infringement suit and countersuit between Apple Inc. ("Apple") and Samsung Electronics Co … —
Apple, Inc. v. Samsung Electronics Co., Ltd., 816 F. 3d 788 (2016)
Apple, Inc. v. Samsung Electronics Co., Ltd., 816 F. 3d 788 (2016) Examples of countersuit in a Sentence
Recent Examples on the Web
Luke denied all claims and filed a countersuit that same year.
—Sophie Dodd, PEOPLE, 2 Oct. 2025
Kate Williams, chef and co-owner of celebrated restaurant Lady of the House, has filed a countersuit against the restaurant’s co-owner and investor Jason Singer, who is suing her in Oakland County Circuit Court.
—Lyndsay C. Green, Freep.com, 26 Sep. 2025
City officials filed a lawsuit, and Smollett a countersuit.
—Raechal Shewfelt, Entertainment Weekly, 26 Sep. 2025
Lively subsequently filed a lawsuit in New York, and Swift's name was first mentioned in connection with the case when Baldoni filed a $400 million countersuit alleging defamation and extortion, which was thrown out by Judge Liman four months after it was filed.
—Mekishana Pierre September 12, EW.com, 12 Sep. 2025
See All Example Sentences for countersuit
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Sophie Dodd, PEOPLE, 2 Oct. 2025
Kate Williams, chef and co-owner of celebrated restaurant Lady of the House, has filed a countersuit against the restaurant’s co-owner and investor Jason Singer, who is suing her in Oakland County Circuit Court.
—Lyndsay C. Green, Freep.com, 26 Sep. 2025
City officials filed a lawsuit, and Smollett a countersuit.
—Raechal Shewfelt, Entertainment Weekly, 26 Sep. 2025
Lively subsequently filed a lawsuit in New York, and Swift's name was first mentioned in connection with the case when Baldoni filed a $400 million countersuit alleging defamation and extortion, which was thrown out by Judge Liman four months after it was filed.
—Mekishana Pierre September 12, EW.com, 12 Sep. 2025
See All Example Sentences for countersuit
Cite this Entry
“Countersuit.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/countersuit. Accessed 7 Oct. 2025.
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