What is the meaning of dissenting?

verb

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

adjective

• Disagreeing, especially with a majority.
  • synonyms: dissentient, dissident