地ち下か化かMeaningsNounSuru verb1. burying; underground installation (cables, etc.)Kanji used地ground下below化transformationComposed of地ち下かunderground; below the ground; world of the dead; the grave; underground (activities, movement, etc.); secret; illegal; in hidingNoun化かchange to ...; becoming ...; making into ...; -ization; -ificationSuffix