war
n//wɑ(r)/<a:father-bother>/krig, föra krig
(uncountable) Organized, large-scale, armed conflict between countries or between national, ethnic, or other sizeable groups, usually but not always involving active engagement of military forces.
(crime) A prolonged conflict between two groups of organized criminals, usually over organizational or territorial control.
(chiefly, _, US) A sustained campaign against a social problem, idea, set of values, etc.
(uncountable, card games) Any of a family of card games where all cards are dealt at the beginning of play and players attempt to capture them all, typically involving no skill and only serving to kill time.
(intransitive) To engage in conflict (may be followed by "with" to specify the foe).