plaintiff
US /ˈpleɪn.t̬ɪf/
UK /ˈpleɪn.t̬ɪf/

1.
demandante, autor
a person who brings a case against another in a court of law.
:
•
The plaintiff sought damages for the injuries sustained.
O demandante buscou indenização pelas lesões sofridas.
•
The judge ruled in favor of the plaintiff.
O juiz decidiu a favor do demandante.