PLAINTIFF
plaintiff, complainant
(noun) a person who brings an action in a court of law
Source: WordNet® 3.1
Etymology
Noun
plaintiff (plural plaintiffs)
(law) A party bringing a suit in civil law against a defendant; accusers.
Synonyms: complainant, litigant, claimant (English law), pursuer (Scottish law)
Antonyms: defendant, suspect
Hypernyms: litigant, litigator
Hyponyms: suer, petitioner
Source: Wiktionary
Plain"tiff, n. Etym: [F. plaintif making complaint, plaintive; in Old
French equiv. to plaignant complainant, prosecutor, fr. plaindre. See
Plaint, and cf. Plaintive.] (Law)
Definition: One who commences a personal action or suit to obtain a remedy
for an injury to his rights; -- opposed to Ant: defendant.
Plain"tiff, a.
Definition: See Plaintive. [Obs.] Prior.
Source: Webster’s Unabridged Dictionary 1913 Edition