高こう架か下したMeaningsNo-adjectiveNoun1. under an elevated structure (esp. elevated railway or bridge)Kanji used高high架framework下belowComposed of高こう架かelevated (structure); overheadNo-adjective下したbelow; down; under; younger (e.g. daughter); bottom; beneath; underneath; just after; right after; inferiority; …Noun