amicus curiae
noun
amicus cu·ri·ae
-ˈkyu̇r-ē-ˌī 
-ˈku̇r-,
-i-ˌē
plural amici curiae
: one (such as a professional person or organization) that is not a party to a particular litigation but that is permitted by the court to advise it in respect to some matter of law that directly affects the case in question
Examples of amicus curiae in a Sentence
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In addition to listing lawsuits to which Michigan has become a party, the tracker also lists all the cases in which Nessel's office has written an amicus curiae brief.
—
Jalen Williams, Freep.com, 29 Oct. 2025
What To Know Teachers’ Union Enters Immigration Lawsuit The Washington Teachers’ Union (WTU), a local affiliate of the American Federation of Teachers—the nation’s third-largest union by membership—filed an amicus curiae brief in Escobar Molina et al.
—Robert Alexander, MSNBC Newsweek, 29 Oct. 2025
Last week, the U.S. Chamber of Commerce and the Chamber of Progress each filed an amicus curiae brief in an ongoing lawsuit between the NRF and New York Attorney General Letitia James.
—Meghan Hall, Sourcing Journal, 26 Aug. 2025
Meanwhile, a coalition made up largely of local and national groups that work with people with behavioral health issues or as behavioral health and disability advocates filed a motion to become an amicus curiae supporting the consent decree’s approval.
—Josh Wood, The Courier-Journal, 2 July 2025
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Jalen Williams, Freep.com, 29 Oct. 2025
What To Know Teachers’ Union Enters Immigration Lawsuit The Washington Teachers’ Union (WTU), a local affiliate of the American Federation of Teachers—the nation’s third-largest union by membership—filed an amicus curiae brief in Escobar Molina et al.
—Robert Alexander, MSNBC Newsweek, 29 Oct. 2025
Last week, the U.S. Chamber of Commerce and the Chamber of Progress each filed an amicus curiae brief in an ongoing lawsuit between the NRF and New York Attorney General Letitia James.
—Meghan Hall, Sourcing Journal, 26 Aug. 2025
Meanwhile, a coalition made up largely of local and national groups that work with people with behavioral health issues or as behavioral health and disability advocates filed a motion to become an amicus curiae supporting the consent decree’s approval.
—Josh Wood, The Courier-Journal, 2 July 2025
See All Example Sentences for amicus curiae
Cite this Entry
“Amicus curiae.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amicus%20curiae. Accessed 3 Nov. 2025.
Copy CitationLegal Definition
amicus curiae
noun
amicus cu·ri·ae
-ˈkyu̇r-ē-ˌī, -ˈku̇r-, -ē-ˌē
plural amici curiae
: one (as an individual or organization) that is not a party to a particular lawsuit but is allowed to advise the court regarding a point of law or fact directly concerning the lawsuit
an amicus curiae must file its brief…no later than 7 days after the principal brief—Federal Rules of Appellate Procedure Rule 29
Federal Rules of Appellate Procedure Rule 29called also friend of the court
Etymology
New Latin, literally, friend of the court
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