difference difference /ˈdɪfrəns/

noun

1. () The quality of being unlike or dissimilar  ( difference )
   the quality of being unlike or dissimilar
    There are many differences between jazz and rock
   there are many differences between jazz and rock
   
2. () A variation that deviates from the standard or norm  ( divergence , departure , deviation , difference )
   a variation that deviates from the standard or norm
    The deviation from the mean
   the deviation from the mean
   
3. () A disagreement or argument about something important  ( conflict , difference , difference of opinion , dispute )
   a disagreement or argument about something important
    He had a dispute with his wife
   he had a dispute with his wife
    There were irreconcilable differences
   there were irreconcilable differences
    The familiar conflict between Republicans and Democrats
   the familiar conflict between Republicans and Democrats
   
4. () A significant change  ( difference )
   a significant change
    The difference in her is amazing
   the difference in her is amazing
    His support made a real difference
   his support made a real difference
   
5. The number that remains after subtraction; the number that when added to the subtrahend gives the minuend  ( difference , remainder )
   the number that remains after subtraction; the number that when added to the subtrahend gives the minuend