過激[kageki] extreme
過激派[kagekiha] radical party
感激[kangeki] deep emotion
急激[kyuugeki] sudden
矯激[kyougeki] radical

激臭[gekishuu] strong odor
激化[gekika] intensification
激減[gekigen] dropping sharply
激賞[gekishou] enthusiastic praise
激情[gekijou] violent emotion

インフラ開発[infurakaihatsu] infrastructure development
エンジン発動機[enjinhatsudouki] engine
バス発着場[basuhacchakujou] depot
発条[bane] spring (e.g. coil, leaf)
ロケット発射筒[rokettohasshatou] rocket launcher

異常発生[ijouhassei] plague
一触即発[isshokusokuhatsu] critical (touch and go) situation
一念発起[ichinenhokki] being resolved to (do something)
一発[ippatsu] one shot
一発かます[ippatsukamasu] to hit someone