ˈwȯrˌfa(a)](ə)r, -fe], ˈwȯ(ə)ˌf...]ə\ noun
Etymology: Middle English, military expedition, warfare, from warre, war + fare
1. : military operations between enemies : armed contest : hostilities, war ; broadly : activity undertaken by a political unit (as a state or nation) to weaken or destroy another
diplomatic warfare
economic warfare
psychological warfare
2. : the process of struggle between competing entities : conflict
high hills whose owners wage unceasing warfare with drought — American Guide Series: Texas
3. : Salvationist evangelical activity