noun
The combination of separate parties or claims into a
single lawsuit.
compulsory joinder
The required joinder of a party without whom a dispute cannot
be fully resolved.
misjoinder
The joining of a party who is not properly a part of the case.Â
nonjoinder
The failure to join a party who should be part of the case.
permissive joinder
The optional joinder of parties or claims because of an overlap
in the issues or interests involved.