Noun
conflict [pl. conflicts]
opposition [pl. oppositions]
inconsistency [pl. inconsistencies]
discrepancy [pl. discrepancies]
incongruity [pl. incongruities]
disagreement [pl. disagreements]
collision [pl. collisions]
discordance [pl. discordances]
incongruence [pl. incongruences]
Verb
to contradict [ contradicted ; contradicted ]
to interfere [ interfered ; interfered ]
to disagree [ disagreed ; disagreed ]
to collide [ collided ; collided ]
...
interference {phys.}
تعارض {فزياء}