1. (

• 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" ;

2. (

• dispute ,
• contravention

) coming into conflict with ;

1. (

• challenge ,
• dispute ,
• gainsay

) take exception to; "She challenged his claims" ;

2. (

• quarrel ,
• dispute ,
• scrap ,
• argufy ,
• altercate

) have a disagreement over something; "We quarreled over the question as to who discovered America"; "These two fellows are always scrapping over something" ;