This right helps you to express your opinions and ideas freely, this means that nobody will hurt you for what you think or for expressing it to others.

In other words, you can protest, create a song or any piece of art saying your opinion about anything and nobody, even the authorities, without being censored.

For eample,
one of the generals of Thanos wants to create a suggestion box for the warriors, in response, Thanos execute him in front of all.