Definition from Wiktionary, the free dictionary
From 1425–75 late Middle English werefare.
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- The waging of war or armed conflict against an enemy
- Military operations of some particular kind e.g. guerrilla warfare
Derived terms 
Terms derived from warfare
Related terms 
The waging of war or armed conflict against an enemy
Military operations of some particular kind
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Translations to be checked
- To lead a military life; to carry on continual wars.