What is the meaning of dissent?

noun

• Law) the difference of one judge's opinion from that of the majority. (
  • usage: "he expressed his dissent in a contrary opinion"
• A difference of opinion.
• The act of protesting; a public (often organized) manifestation of dissent.
  • synonyms: protest, objection

verb

• Withhold assent.
  • usage: "Several Republicans dissented"
• Express opposition through action or words.
  • usage: "dissent to the laws of the country"
  • synonyms: protest, resist
• Be of different opinions.
  • usage: "I beg to differ"; "She disagrees with her husband on many questions"
  • synonyms: disagree, differ, take issue