in-fighting

English Thesaurus

1. boxing at close quarters (noun.act)

hypernym	:	boxing, fisticuffs, pugilism,
definition	:	fighting with the fists (noun.act)

2. conflict between members of the same organization (usually concealed from outsiders) (noun.act)

hypernym	:	combat, fight, fighting, scrap,
definition	:	the act of fighting; any contest or struggle (noun.act)