Synonyms for Difference (same or very similar meaning)
WordNet sense 1 (the number that remains after subtraction; the number that when added to the subtrahend gives the minuend):
remainder
WordNet sense 2 (a variation that deviates from the standard or norm):
departure, deviation, divergence
WordNet sense 3 (a disagreement or argument about something important):
conflict, dispute, conflict, difference of opinion
From the ODE community, based on WordNet
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