What does dissent, persecute, and tolerance all have in common

Dissent, persecute, and tolerance are more of the common terms in the religion or non-secular aspect. In definition, dissent is to oppose from one’s belief system or set of beliefs. When you preach something that is contrary to what is the doctrine, one is committing heresy. Persecution is about suffering because of one’s faith. Undertakings and pain are being persevered because of the faith to one’s God. And tolerance, an inconceivable view –profaning the religion is subject to persecution. In Islam, one is subject to be beheaded. These three texts are specifically more significant in the Christian and Islam religion.  

Dissent, persecute, and tolerance all are words commonly used in reference to religion.

"Dissent" can be used in a wide variety of contexts to refer to disagreement with an established view.  There are dissenters in politics as well as religion.  In religion, the most famous as "dissenters" were the various English Dissenters of the 16th thru 18th century, groups that went against established beliefs and practices of the Church of England.  Some of the most notable English Dissenters were the Anabaptists (akin to Anabaptists on the European continent), the Puritans, and the Quakers.

Persecution can happen for reasons other than religion also, but the term is often associated with religious contexts. Persecution targets persons because of their beliefs and subjects them to mistreatment or even death. The aim of persecution is to force individuals to change their beliefs or to remove them as a threat to the established church or the majority beliefs of a society.  Often this backfires, however, as the persecuted group is seen as more valiant and moral than the group doing the persecuting.

Tolerance happens when persons and groups of differing beliefs ultimately let others have their own beliefs and not keep trying to attack or suppress them.  During the period of the Wars of Religion in the 16th and 17th centuries, this was eventually a result.  When warring sides could not eradicate their religious opponents, finally it made more sense to let others go their own way.  During the period of the Enlightenment in the 18th century, writers like Voltaire strongly advocated religious tolerance.