v.
 (argues, arguing, argued)
  - exchange conflicting views in a heated way.
 - give reasons or cite evidence in support of an idea, action, or theory:
 sociologists argue that inequalities are being reduced.
 
 
  Phrase
  
    
      - argue the toss
 informal, chiefly Brit. dispute a decision already made. 
    
   
  Derivative
  
  Etymology
  ME: from OFr. arguer, from L. argutari ‘prattle’, frequentative of arguere ‘make clear, prove, accuse’.