plaint C2+

/pleɪnt/ an expression of grief or complaint; a lament M S

complainer C2+

/kəmˈpleɪnɚ/ a person who frequently expresses dissatisfaction M S

plaintiff C2+

/ˈpleɪntɪf/ a person who brings a legal action against another in a court of law M S

plaintive C2+

/ˈpleɪntɪv/ sounding sad and mournful M S