Suppression (noun)

1. The act of suppressing or the state of being suppressed.
2. The restriction or limitation of something, especially speech, expression or an activity.
3. The ending or extinction of something, especially an activity, movement or behavior.
4. The deliberate restraint of something, especially speech, expression or an activity.
5. The use of force, authority or influence to prevent or restrain something.

Origin:

From suppress, meaning "to prevent or restrain from being expressed.".

Examples:

1. The suppression of free speech is a violation of human rights.
2. The suppression of dissent can have a negative impact on society.
3. The suppression of the rebellion was necessary for peace.
4. The suppression of the protest was criticized by many people.
5. The suppression of information was seen as a cover-up.