Definition of Hostilities

Noun: hostilities  hós'ti-lu-teez

  1. Fighting; acts of overt warfare
    "the outbreak of hostilities";
    - belligerency
Noun: hostility  hós'ti-lu-tee
  1. A hostile (very unfriendly) disposition
    "he could not conceal his hostility";
    - ill will
     
  2. A state of deep-seated ill-will
    - enmity, antagonism
     
  3. The feeling of a hostile person
    "he could no longer contain his hostility";
    - enmity, ill will
     
  4. Violent action that is hostile and usually unprovoked
    - aggression

See also:
hostiles
hostility