complainant
noun
com·plain·ant
kəm-ˈplā-nənt 
Examples of complainant in a Sentence
the complainant charged that the defendant had broken the ironclad contract that both had signed
Recent Examples on the Web
One of the five complainants is an HHS employee who needs a top surgery revision and to continue hormone therapy.
—
Theresa Gaffney, STAT, 5 Jan. 2026
The complainant was able to provide police with screenshots of the text message conversation between Moore and his sister, the affidavit says.
—Steven Mross, Arkansas Online, 4 Jan. 2026
The Door County Sheriff's Office said there is no active investigation because the office is waiting for the complainant to provide more information about what happened.
—Hope Karnopp, jsonline.com, 29 Dec. 2025
The new charges bring the total number of complainants to six.
—Christina Coulter, PEOPLE, 23 Dec. 2025
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Cite this Entry
“Complainant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/complainant. Accessed 13 Jan. 2026.
Kids Definition
complainant
noun
com·plain·ant
kəm-ˈplā-nənt
1
: one who makes a legal complaint
2
: one who complains
Legal Definition
complainant
noun
com·plain·ant
kəm-ˈplā-nənt
: the party (as a plaintiff or petitioner) who makes the complaint in a legal action or proceeding
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