A nationwide ban refers to a prohibition or restriction on something throughout an entire country. It means that the item, activity, or substance is illegal and not allowed anywhere within the nation's borders.
Related terms
Prohibition: The period in U.S history (1920-1933) when alcohol production, sale, and distribution were prohibited by law.
Jim Crow Laws: State and local laws enforcing racial segregation in public facilities across many southern states.
Embargo: A government-imposed restriction on trade with another country as a form of punishment or control.