What is the meaning of Dissent?

To disagree; to withhold assent. Construed with from (or, formerly, to).

To differ from, especially in opinion, beliefs, etc.

To be different; to have contrary characteristics.

Disagreement with the ideas, doctrines, decrees, etc. of a political party, government or religion.

An act of disagreeing with, or deviating from, the views and opinions of those holding authority.

A separate opinion filed in a case by judges who disagree with the outcome of the majority of the court in that case

A violation that arises when disagreement with an official call is expressed in an inappropriate manner such as foul language, rude gestures, or failure to comply.

third-person plural imperfect subjunctive of dire

Source: wiktionary.org