"Lynching" historically includes not only Southern lynching but frontier lynching and vigilantism nationwide and many labor-related incidents.  Persons of any race or ethnicity and either gender may have been either perpetrators or victims of lynching.

What follows is the NAACP definition for including an incident in the inventory of lynchings:

1) There must be evidence that someone was killed;

2) The killing must have occurred illegally;

3) Three or more persons must have taken part in the killing; and

4) The killers must have claimed to be serving justice or tradition.