Definition of "Difference" :

noun: the quality of being unlike or dissimilar

"There are many differences between jazz and rock."

noun: a disagreement or argument about something important

"There were irreconcilable differences."

noun: a variation that deviates from the standard or norm

noun: the number that remains after subtraction; the number that when added to the subtrahend gives the minuend

noun: a significant change

"The difference in her is amazing."