fēng​suǒ HSK7

seal off

封锁 (封鎖) fēng​suǒ
seal off verb
to cordon off a specific area or suppress information to prevent access, escape, or leakage

For safety reasons, the police cordoned off all exits of the building.

blockade verb
to use force or barriers to prevent movement into or out of a port, region, or country

The navy blockaded the country's ports to cut off supplies.

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

Definitions
CC-CEDICT