Dreye權威釋義

n.

（尤指監獄暴動時的）嚴防禁閉；一級封鎖
The warden ordered a complete lockdown of the prison after its inmates staged a riot.
在囚犯發生暴動之後典獄長就下令將監獄封鎖。

以上來源於：《英漢大辭典》

n.

N. Amer. the confining of prisoners to their cells, typically to regain control during a riot.

以上來源於：《簡明牛津英語詞典》