conflict, struggle

COMBAT
WordClue
WARconflict, collision
FIGHTconflict, combat
BATTLEstruggle
EFFORTstruggle
STRIFEconflict, discord
CONFLICTstruggle, contention
STRUGGLEconflict, contention
VARIANCEdiscrepancy, conflict
ENCOUNTERconflict, fight
CONTENTIONstruggle, fight
ENCOUNTERconflict, fight
ACCORDconformity, agreement