Meaning of the word complainant in English

What does complainant mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

complainant

US /kəmˈpleɪ.nənt/
UK /kəmˈpleɪ.nənt/

Noun

a person who makes a formal complaint in a court of law or to another authority

Example:
The police interviewed the complainant about the incident.
The judge listened carefully to the complainant's testimony.