Censorship refers to the practice of suppressing or restricting information, ideas, and/or expression that is considered objectionable, offensive, or inappropriate by certain individuals or groups. This can be done through various means such as banning books, blocking websites, removing artwork, or limiting freedom of speech. The goal of censorship is often to protect others from what is deemed harmful or undesirable content, but it has also been used as a tool for controlling information and suppressing dissent throughout history.