申しん告こく箱ばこMeaningsNoun1. suggestion boxKanji used申say humbly告reveal箱boxComposed of申しん告こくreport; return (e.g. tax); statement; declaration; notification; filingNoun箱はこbox; case; chest; package; pack; crate; car (of a train, etc.); shamisen case; shamisen; counter for boxes (or boxed objects)Noun