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 standard term for a military blockade, such as a naval blockade. Can be used as a noun or verb (封鎖する).
敵国は港を封鎖した。
The enemy country blockaded the port.
海上封鎖が敷かれた。
A naval blockade was imposed.
Specifically a naval blockade. Used when emphasizing the maritime aspect.
海上封鎖によって物資が届かない。
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.
Also used for non-military blockades, such as police cordons or protesters blocking a road.
警察が道路を封鎖した。
The police blockaded the road.
デモ隊が交差点を封鎖している。
Protesters are blockading the intersection.
Emphasizes cutting off or isolating an area, often used for traffic blockades or shutting off access.
To restrict trade or economic activity with a country or region.
The standard term for an economic blockade or embargo.
その国は経済封鎖の影響で物不足に陥った。
The country suffered shortages due to the economic blockade.
Can be used alone when context makes it clear it's economic.
To describe a situation where something is being blocked or suppressed, not physically.
Used metaphorically for blocking information, emotions, etc.
政府は情報を封鎖した。
The government blockaded information.
Often used for cutting off communication or isolating something.
In medical contexts, to block a nerve or function.
Commonly used in medical Japanese as a loanword for nerve block or blockade.
神経ブロック注射を受けた。
I received a nerve block injection.
Used in medical terms like 神経遮断 (nerve block).
神経遮断薬
nerve blocking agent
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.
The road was blockaded by a landslide.
The blockade was lifted and trade resumed.
To blockade communication with the outside.