“Suggestion box” in Japanese
Short answer
Suggestion box in Japanese is “申告箱” (shinkokubako). Full meaning: suggestion box.
Other ways to say “Suggestion box” in Japanese
目安箱
meyasubako suggestion box, comment box
投書箱
toushobako suggestion box, complaints box
提案箱
teianbako suggestion box
ご意見箱
goikenbako suggestion box, opinion box; advisor, sounding board
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