All co-respondent synonyms

noun co-respondent

• third party — any party to an incident, case, quarrel, etc., who is incidentally involved.
• other man — a man who is romantically or sexually involved with another man's wife or lover, especially a man who is having an affair with a married woman.
• other woman — a woman who is romantically or sexually involved with another woman's husband or lover, especially a woman who is having an affair with a married man.
• second man — a person who assists the driver in crewing a locomotive