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

At the same time that Mr. Ma was building his online community, the government was building the Great Firewall around it.

From The Wall Street Journal • Feb. 6, 2026

Resourceful activists have been finding new ways to get around this but even those few cracks in the Great Firewall - like AirDrop - are now slowly being plugged.

From BBC • Jun. 8, 2023

But the system, which also lets the FSB security service spy on Russian citizens, is a relative sieve compared to China’s Great Firewall.

From Seattle Times • Mar. 13, 2022

A more severe step would be creating an analog to China’s Great Firewall, which restricts access to foreign websites on the outside and strictly controls what is allowed inside.

From New York Times • Mar. 7, 2022

Even when a prosperous and rising China sought to close itself off from the global internet with a Great Firewall and vast censorship, the digital byways still erupted periodically with fury and criticism.

From Washington Post