What does ban mean?
A ban is an official prohibition that forbids something from being done, used, possessed, or said, typically enforced by law or institutional authority. It appears most often as a noun — 'a smoking ban', 'a travel ban', 'a social media ban' — but also works as a verb meaning to impose such a prohibition, as when a governing body bans a practice outright. Bans carry connotations of authority and restriction: they imply not merely disapproval but active enforcement, distinguishing them from softer terms like advice or discouragement. The word's history is strikingly old — it descends from Old English 'bannan', meaning to summon or proclaim, cognate with German 'bannen', and related through medieval Latin 'bannum' to words like 'banish', 'bandit', and 'contraband'. In its oldest religious sense, a ban could even be a solemn curse or act of excommunication. Today the word is indispensable in discussions of law, public policy, and regulation, where debates about what should be banned are constant and consequential.
An official or legal prohibition forbidding something.
"A ban on plastic straws takes effect next month."
A curse or malediction; a formal sentence of excommunication.
"In medieval times, the papal ban excluded a person from all sacraments."
This sense is now largely historical.
To prohibit or forbid something, especially by official or legal decree.
"Several countries have banned the sale of ivory."
Standard plural used for multiple prohibitions, e.g. across regions or categories.
"The state has enacted bans on both fireworks and open fires."
The word 'ban' traces back over a thousand years — in medieval Germanic law, it was the formal proclamation of an outlaw: to be 'banished' was literally to be placed under a public curse.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of ban
Ban descends from Old English 'bannan', meaning to summon, proclaim, or command, which shares a common Germanic root with German 'bannen'. Through Frankish influence it gave rise to medieval Latin 'bannum' — a proclamation of outlawry — from which derive 'banish', 'bandit', 'contraband', and 'banal'. An ecclesiastical sense of ban as a solemn curse or excommunication developed in medieval church usage and survives only in historical contexts.
Related word forms
How ban is actually used
Common in both formal and everyday contexts; as a verb, often used in passive constructions ('was banned'). The older ecclesiastical sense of ban as a curse or excommunication survives mainly in historical or religious contexts.
Easily confused with ban
Bane means a cause of harm, ruin, or death (e.g. 'the bane of my existence'), while ban means an official prohibition.