爆発|ばくはつbakuhatsu[0]heiban (flat)

1. noun, suru verb, intransitive verbexplosion; detonation; blast; blowing up; eruption
   屋根やねは爆発ばくはつで吹き飛ふきとばされた。↗

   The roof was blown off by the explosion.
2. noun, suru verb, intransitive verboutburst (of emotion); explosion (e.g. of anger); eruption (e.g. of discontent)
   そのニュースは彼かれの怒いかりを爆発ばくはつさせた。↗

   The news caused him to explode with anger.

• Synonym炸裂さくれつNeutralRefers to bombs bursting apart, and figuratively to a move or shot landing spectacularly, as in 「必殺技が炸裂する」.
• Synonym破裂はれつNeutralBursting from internal pressure, as in 「水道管が破裂する」; also the breakdown of talks, not necessarily involving an explosion.
• SynonymバーストNeutralA loanword for a tyre bursting or a sudden burst of signal; mostly used for cars and technology.
• Synonym爆裂ばくれつWrittenA written word for exploding and bursting apart; stresses the splitting open more than 「爆発」 and is rarely used.
• Related爆破ばくはNeutralBlowing something up deliberately with explosives, as in 「ビルを爆破する」; a human act, not a natural event.
• Related噴火ふんかNeutralVolcanic eruption, as in 「噴火警報」; limited to volcanoes.
• Related噴出ふんしゅつNeutralGases or liquids spewing out, as in 「ガスが噴出する」; also figuratively for pent-up discontent erupting all at once.
• RelatedパンクNeutralA loanword for a tyre puncturing and going flat, and figuratively for systems breaking down under overload, as in 「サーバーがパンクする」.
• RelatedエクスプロージョンNeutralA loanword for explosion, used sparingly and mostly in games and titles; say 「爆発」 in ordinary contexts.
• Related爆ぜるはぜるNeutralA verb for popping or bursting open, as in 「栗が爆ぜる」「火が爆ぜる」; mostly small-scale bursts.
• Related激発げきはつWrittenA written word for events suddenly breaking out or emotions flaring violently; little used today.
• Related爆砕ばくさいWrittenA written word for blasting something to pieces with explosives, as in 「岩盤を爆砕する」; leans toward engineering jargon.
• RelatedはちきれるNeutralSo full it is about to burst, as in 「お腹がはち切れそう」; often hyperbolic.
• Antonym鎮静ちんせいNeutralCalming a commotion or emotion down; the opposite of the violent 「爆発」.
• Antonym沈静ちんせいWrittenA written word for settling into stillness, as in 「市場が沈静化する」; the opposite of 「爆発」.

Use 「爆発」 for explosions or outbursts of emotion. For bursting under pressure say 「破裂」, for deliberate demolition 「爆破」, for volcanoes 「噴火」, for flat tyres 「パンク」. 「爆ぜる」 covers small bursts, 「噴出」 spewing gas or liquid, 「バースト」 tyre or signal bursts, 「炸裂」 spectacular hits. The written 「爆裂」「激発」「爆砕」 and loanword 「エクスプロージョン」 are rare; 「はち切れる」 is hyperbolic. Opposites: 「鎮静」 and 「沈静」.

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

1. 熱ねつや音おと・光ひかりなどを伴ともない、一気いっきに飛び散とびちること。
2. 溜たまっていた感情かんじょうなどが一気いっきに外そとへ出でること。
3. 人気にんきや売上うりあげ、数値すうちなどが急上昇きゅうじょうしょうすること。
4. 主おもに攻撃陣こうげきじんが大だい活躍かつやくすること。