Dissent

1. noun

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

   Similar: protest, objection

2. noun

   (law) the difference of one judge's opinion from that of the majority

   “he expressed his dissent in a contrary opinion”

3. verb

   express opposition through action or words

   “dissent to the laws of the country”

   Similar: protest, resist

4. verb

   be of different opinions

   “I beg to differ!”

   Similar: disagree, differ, take issue