dispute in WordNet English dictionary

1. have a disagreement over something
   "We quarreled over the question as to who discovered America"; "These two fellows are always scrapping over something"
   quarrel  dispute  scrap  argufy  altercate 
   
2. take exception to
   "She challenged his claims"
   challenge  dispute  gainsay 
   

1. 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"
   dispute  difference  difference of opinion  conflict 
   
2. coming into conflict with
   dispute  contravention