disagreement

[1]	difference , dissension , dissonance , discrepancy , discord , discordance , discordancy , dissimilarity , disaccord , diversity , incongruity , nonconformity , incompatibility
[2]	dissent , discrepancy , divergence , opposition , conflict , variance , contradiction , difference , disparity
[3]	quarrel , strife , argument , dispute , velitation , altercation , controversy , contention , dissension , debate , clash , (Colloq) (US) rhubarb