封鎖|ふうさfuusa[0]heiban (flat)

1. noun, suru verb, transitive verbblockade; lockdown; sealing off (an area)
   この港みなとは封鎖ふうさされうる。↗

   The harbor can be blocked.
2. noun, suru verb, transitive verbfreezing (funds)

• Synonym封じるふうじるNeutralA verb for sealing something shut, as in 「出口を封じる」 or 「口を封じる」; it leans toward stopping movement or action, while 「封鎖」 centers on forcibly closing off roads and ports.
• Synonym遮断しゃだんNeutralCutting something off, as in 「交通を遮断する」 or 「光を遮断」; it stresses severing a flow of traffic, light or signals rather than a blockade.
• Synonym塞ぐふさぐNeutralPlugging a hole or blocking a passage, as in 「穴を塞ぐ」 or 「道を塞ぐ」; the nuance is physically stopping something up.
• Synonym閉鎖へいさNeutralClosing down a facility, as in 「工場閉鎖」; it stresses shutting down operations, while 「封鎖」 stresses blocking movement through an area.
• Synonym閉塞へいそくWrittenA written/formal word for blockage, as in 「腸閉塞」 or 「閉塞感」; it stresses being stopped up or cut off, not an imposed blockade.
• Synonym完封かんぷうNeutralSealing something off completely, or a shutout in baseball, as in 「完封勝利」; much of its use is sporting jargon.
• Synonym閉ざすとざすNeutralShutting gates, doors or passages, as in 「門を閉ざす」; also used figuratively, as in 「心を閉ざす」 for closing oneself off.
• Synonym封ずるふうずるWrittenThe -zuru variant of 「封じる」, with the same meaning but a stiffer, more bookish feel; 「封じる」 is the usual choice.
• Related阻害そがいWrittenA written/formal word for obstructing or holding something back, as in 「成長を阻害する」; it means impeding progress, not sealing off a passage.
• Related阻止そしNeutralStopping an action from happening, as in 「侵入を阻止する」; it leans toward intercepting or checking something, not closing off an area.
• Related妨害ぼうがいNeutralObstructing or interfering with something, as in 「営業妨害」 or 「通行妨害」; the emphasis is on disruption rather than sealing a place off.
• Related阻むはばむWrittenA written/formal verb for blocking or thwarting someone, as in 「行く手を阻む」; the image is standing in someone's way rather than closing an area.
• Related遮るさえぎるNeutralBlocking something from view or interrupting, as in 「視界を遮る」 or 「話を遮る」; it centers on blocking sight or cutting into speech.
• Related包囲ほういNeutralSurrounding a target, as in 「敵を包囲する」; the image is encirclement from all sides rather than sealing off roads or ports.
• Related妨げるさまたげるNeutralHindering something in progress, as in 「睡眠を妨げる」; it focuses on getting in the way of how something proceeds, not sealing it off.
• Antonym解放かいほうNeutralAntonym: releasing someone from restraint or confinement, as in 「人質を解放する」; it stands opposite to blockading or holding in.
• Antonym解除かいじょNeutralAntonym: lifting a blockade or restriction, as in 「封鎖解除」; it is the direct opposite of 「封鎖」.
• Antonym開放かいほうNeutralAntonym: opening something up, as in 「市場開放」; it stands opposite to the closing-off sense of 「封鎖」.

Use 「封鎖」 for forcibly closing roads, ports or areas, or freezing funds: 「道路封鎖」, 「経済封鎖」. Seal something shut with 「封じる」 (「封ずる」 is a stiffer variant), cut off flow with 「遮断」, close a facility with 「閉鎖」. The rest — 阻止, 妨害, 妨げる, 阻む, 遮る, 塞ぐ — mean stopping or blocking in various ways; 「阻害」 is formal for hindering growth. 「包囲」 is encirclement, 「完封」 a shutout, 「閉塞」 a written word for blockage. Opposites: 「解除」 lifts a blockade, 「開放」 opens up, 「解放」 sets free.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 封ふうじ閉とざすこと。
2. 交通こうつうなどの往き来いききを遮断しゃだんすること。
3. 経済けいざい交流こうりゅうや金融きんゆう資産しさんの移動いどうを制限せいげんすること。