Complainant vs. Complainer

Complainantnoun

(legal) The party that brings a civil lawsuit against another; the plaintiff.

Complainernoun

One who complains, or is known for their complaints.

Complainantnoun

One who makes complaint.

Complainernoun

One who complains or laments; one who finds fault; a murmurer.

‘Speechless complainer, I will learn thy thought.’;

Complainantnoun

One who makes complaint.

‘Eager complainants of the dispute.’;

Complainernoun

a person given to excessive complaints and crying and whining

Complainantnoun

One who commences a legal process by a complaint.

‘He shall forfeit one moiety to the use of the town, and the other moiety to the use of the complainant.’;

Complainantnoun

a person who brings an action in a court of law

Complainantnoun

a plaintiff in certain lawsuits.