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) change (a relational difference between states; especially between states before and after some event) "he attributed the change to their marriage"
W: (v) change [Related to: change] (become different in some particular way, without permanently losing one's or its former characteristics or essence) "her mood changes in accordance with the weather"; "The supermarket's selection of vegetables varies according to the season"
W: (v) change [Related to: change] (cause to change; make different; cause a transformation) "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"