Translation guide
The English word "blockade" refers to the act of sealing off a place to prevent goods or people from entering or leaving. In Japanese, the most common equivalent is 封鎖 (ふうさ), but depending on context, other terms like 遮断 (しゃだん) or 閉鎖 (へいさ) may be used. This guide helps learners choose the right expression for military, protest, or metaphorical contexts.
To prevent access to a port, city, or area by military force, often using ships or troops.
The enemy country blockaded the port.
A naval blockade was imposed.
Specifically a naval blockade. Used when emphasizing the maritime aspect.
Supplies cannot get through because of the naval blockade.
To physically obstruct a road, entrance, or area, often by people or barriers, not necessarily military.
To restrict trade or economic activity with a country or region.
To describe a situation where something is being blocked or suppressed, not physically.
In medical contexts, to block a nerve or function.
封鎖 (ふうさ) is the most direct translation for 'blockade' and implies a forceful or intentional sealing off, often by an authority. 遮断 (しゃだん) emphasizes cutting off or isolating, and is common for traffic, communication, or physical barriers. 閉鎖 (へいさ) means 'closure' and is used for shutting down facilities or borders, but lacks the active obstruction nuance of a blockade.
The loanword ブロック is used for sports (blocking a ball), medical blocks, or psychological blocks, but not for military or police blockades. Use 封鎖 instead.
Protesters are blockading the intersection.
土砂崩れで道路が遮断された。
The road was blockaded by a landslide.
封鎖が解除され、貿易が再開した。
The blockade was lifted and trade resumed.
外部との連絡を遮断する。
To blockade communication with the outside.
神経遮断薬
nerve blocking agent