Censorship: The suppression or prohibition of any parts of books, films, news that are considered obscene, politically unacceptable, or a threat to security. It's like your parents controlling what movies you can watch based on their content.
Authoritarianism: A system of governance where power is concentrated in the hands of leaders who exercise complete control over all aspects of life - think about it as being ruled by an extremely strict principal who makes all decisions without consulting students or teachers.
Political Oppression: The unjust treatment by those in power towards certain groups within society due its political beliefs - similar to a teacher who always gives lower grades to students just because they have different opinions.