申しん告こく箱ばこじ字FuriganaMeanings1nounsuggestion boxA box where people can submit suggestions, complaints, or feedback, often found in offices or public facilities.会かい社しゃの廊ろう下かに申しん告こく箱ばこが設せっ置ちされている。A suggestion box is installed in the company hallway.
