Prohibited items are items that are not allowed in certain places or situations, often due to safety, legal, or security reasons. Common examples include weapons, illegal drugs, and hazardous materials. These restrictions help ensure the safety of individuals and the public. Different organizations, such as airports and schools, have specific lists of prohibited items. For instance, at airports, items like sharp objects and flammable materials are banned to prevent potential threats. Understanding these restrictions is important for compliance and safety in various environments.