Great Firewall

British  

noun

1. informal a system that prevents access to websites deemed undesirable by the government of the People's Republic of China

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Etymology

Origin of Great Firewall

C21: a play on the _{Great Wall of China}

Example Sentences

When AI systems train on content from the Chinese internet, it is already scrubbed as part of China’s so-called Great Firewall, the system Beijing set up years ago to block online content it finds objectionable.

From The Wall Street Journal

They reflect the country’s longstanding efforts to control public discourse, including setting up the Great Firewall in the early 2000s.

From The Wall Street Journal

Other Meta apps, including Facebook, Instagram and Messenger remained available for download, although use of such foreign apps is blocked in China due to its “Great Firewall” network of filters that restrict use of foreign websites such as Google and Facebook.

From Seattle Times

WhatsApp, one of the world’s most popular messaging services, and Threads were not used widely in China, which has an elaborate system to block foreign apps and websites inside its borders, known as the Great Firewall.

From New York Times

Vietnam is not large enough to do what China has done, and seal itself off behind its own "great firewall".

From BBC