dissent

Noun

• the act of protesting; a public (often organized) manifestation of dissent

• a difference of opinion

• (law) the difference of one judge's opinion from that of the majority
  • he expressed his dissent in a contrary opinion
    

Verb

• be of different opinions
  • I beg to differ!
    
  • She disagrees with her husband on many questions
    

• express opposition through action or words
  • dissent to the laws of the country
    

• withhold assent
  • Several Republicans dissented
    

Related words

• Synonyms: 
  protest , objection , disagree , differ , take issue , resist
• Antonyms: 
  agree , hold , concur , concord , assent , accede , acquiesce