暗雲[anun] dark clouds
闇雲[yamikumo] recklessly
いわし雲[iwashigumo] cirro-cumulus
雨雲[amagumo] rain cloud
雲隠れ[kumogakure] disappearance

雲影[unei] cloud shape
雲海[unkai] sea of clouds
雲間[kumoma] rift between clouds
雲形[kumogata] cloud formations

遠雷[enrai] distant thunder
機雷[kirai] (sea) mine
機雷原[kiraigen] minefield
魚雷[gyorai] torpedo
魚雷艇[gyoraitei] torpedo boat

仕掛地雷[shikakejirai] booby trap
疾風迅雷[shippuujinrai] with lightning speed
襲雷[shuurai] lightning strike
人工雷[jinkourai] artificial lightning
迅雷[jinrai] thunderclap