潜せん水すい空くう母ぼせんすいくうぼじ字FuriganaMeanings1nounsubmarine aircraft carrierA military vessel that functions both as a submarine and an aircraft carrier; a historical concept, especially associated with the Imperial Japanese Navy's I-400 class.旧きゅう日本にほん海かい軍ぐんは潜せん水すい空くう母ぼを建けん造ぞうした。