litigant

US /ˈlɪt̬.ə.ɡənt/
UK /ˈlɪt̬.ə.ɡənt/
"litigant" picture
1.

a person involved in a lawsuit, whether as a plaintiff or a defendant

:
Both litigants presented their arguments to the judge.
The lawyer advised his litigant on the next steps in the case.