急度[kitto] surely
オリエント急行[orientokyuukou] Orient express
応急[oukyuu] emergency
応急攻撃[oukyuukougeki] hasty attack
応急渡河[oukyuutoka] hasty crossing

火急[kakyuu] emergency
緩急[kankyuu] pace
危急[kikyuu] emergency
危急存亡[kikyuusonbou] life-and-death matter

落っこちる[okkochiru] to fall down
お洒落[oshare] smartly dressed
ぽたぽた落ちる[potapotaochiru] to fall in drops
悪洒落[warujare] offensive joke
為落し[shiotoshi] omission

為落ち[shiochi] omission
為落す[shiotosu] to fail to do
一段落[ichidanraku] completing the first stage
猿も木から落ちる[sarumokikaraochiru] even monkeys fall from trees
下落[geraku] depreciation