揮発[kihatsu] volatilization
揮発性[kihatsusei] volatile
揮発度[kihatsudo] volatility
揮発物質[kihatsubusshitsu] volatile substance
揮発油[kihatsuyu] gasoline

指揮[shiki] command
指揮官[shikikan] commander
指揮者[shikisha] (musical) conductor
指揮所[shikijo] command post
指揮所演習[shikijoenshuu] command post exercise

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