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Category A

British  

adjective

  1. (of a prisoner) regarded as highly dangerous and therefore requiring constant observation and maximum security

  2. (of a prison or prison unit) designed for such prisoners

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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After that, he was moved to Frankland, a Category A high security jail.

From BBC ● Feb. 27, 2026

In 2008 Huntley was moved to HMP Frankland, a Category A high security men's prison.

From BBC ● Feb. 26, 2026

The Category A men's prison houses more than 600 inmates, including men convicted of terrorism offences and more than two-thirds are serving life sentences while the rest have jail terms of 10 years or more.

From BBC ● May 30, 2025

China downgraded the management of COVID-19 to Category B from Category A at the end of 2022 after almost three years of strict restrictions that included locking down entire cities.

From Reuters ● Sep. 15, 2023

China puts infectious diseases into three classes, with the top level Category A giving authorities the power to quarantine patients and their close contacts.

From Reuters ● Sep. 15, 2023

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