S: (n) vicissitude (a variation in circumstances or fortune at different times in your life or in the development of something) "the project was subject to the usual vicissitudes of exploratory research"
S: (n) allomerism ((chemistry) variability in chemical composition without variation in crystalline form)
S: (n) dispute, difference, difference of opinion, conflict (a disagreement or argument about something important) "he had a dispute with his wife"; "there were irreconcilable differences"; "the familiar conflict between Republicans and Democrats"
S: (n) difference (a significant change) "the difference in her is amazing"; "his support made a real difference"
S: (n) remainder, difference (the number that remains after subtraction; the number that when added to the subtrahend gives the minuend)