complainant

[ kuh m-pley-nuh nt ]
/ kəmˈpleɪ nənt /

noun

a person, group, or company that makes a complaint, as in a legal action.

RELATED WORDS

Origin of complainant

1375–1425; late Middle English < Anglo-French compleignant (present participle of compleindre). See complain, -ant
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for complainant

complainant

/ (kəmˈpleɪnənt) /

noun

law a person who makes a complaint, usually before justices; plaintiff

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012