fēng​suǒ HSK7

to blockade

封锁 封鎖 fēng​suǒ
to blockade verb
to seal off or block access to a place by force or authority
to lock down verb
to prevent information or news from being spread, often through censorship; to impose a blackout
to seal and lock
to seal a door or container and lock it with a key

Frequency

Movie subtitles
19.7 per million appears in 7% of films
Written text
11.4 per million

Details

HSK 2.0
Level 6
HSK 3.0
Level 7

Sources