地ち下か二に階かいMeaningsNoun1. second basement level; subbasementOther spellings地ち下か２に階かいUsage share unknownKanji used地ground下below二two階floor (of a building)Composed of地ち下かunderground; below the ground; world of the dead; the grave; underground (activities, movement, etc.); secret; illegal; in hidingNoun二に階かいsecond floor; upstairsNoun