
der Ban
ban
A block or exclusion of a user from an online platform, forum, or computer game.
Wegen wiederholter Regelverstöße erhielt der Spieler einen permanenten Ban.
Because of repeated rule violations, the player received a permanent ban.
ban
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ban
A block or exclusion of a user from an online platform, forum, or computer game.
Wegen wiederholter Regelverstöße erhielt der Spieler einen permanenten Ban.
Because of repeated rule violations, the player received a permanent ban.

ban
A historical title for a governor or viceroy in some southeastern European countries such as Croatia or Bosnia.
Der Ban von Kroatien hatte eine wichtige politische Stellung im Königreich Ungarn.
The Ban of Croatia held an important political position in the Kingdom of Hungary.
The two meanings of 'Ban' are very different. The context makes it clear what is meant: if it is about the internet, games, or social media, it refers to a ban. In historical texts about southeastern Europe, it refers to the noble title.
Er hat einen Ban für das Forum bekommen, weil er die Regeln missachtet hat.
He got a ban from the forum because he ignored the rules.
In the meaning of 'Sperre' (ban/block), 'der Ban' is a loanword from English. It belongs to the word family of the German verb 'bannen' (to banish or exclude someone).
Der Administrator kann Nutzer bannen, die Spam posten.
The administrator can ban users who post spam.
In online contexts, 'Ban' is often combined with certain verbs. Typical phrases are 'einen Ban bekommen' (to get a ban), 'einen Ban erhalten' (to receive a ban), or 'einen Ban haben' (to have a ban).
Nach drei Verwarnungen hat sie einen permanenten Ban bekommen.
After three warnings, she got a permanent ban.
The word 'Ban' in the meaning of 'Sperre' (ban/block) belongs to colloquial language and the jargon of internet and gaming culture. In more formal texts, you would more likely find 'Sperre' (block/ban) or 'Ausschluss' (exclusion).
Mein Account hat einen 24-Stunden-Ban.
My account has a 24-hour ban.
exclusion
Both words can refer to removing a user from an online community. Ausschluss is the general and often more formal term. Ban is used especially on platforms, forums, and in computer games, so it fits well in informal conversations about such services.

Im Spielechat schrieb Tom, dass er wegen seiner Beleidigungen einen Ban bekommen habe.
In the game chat, Tom wrote that he had been banned because of his insults.
Die Moderation begründete den Ausschluss des Nutzers aus dem Forum mit den geltenden Regeln.
The moderators justified the user’s exclusion from the forum by citing the applicable rules.