“Duplicate key” in Japanese
Short answer
Duplicate key in Japanese is “合鍵” (aikagi). Full meaning: duplicate key; master key, passkey, skeleton key.
Other ways to say “Duplicate key” in Japanese
合い鍵
aikagi duplicate key; master key, passkey, skeleton key
あいかぎ
aikagi duplicate key; master key, passkey, skeleton key
合いかぎ
aikagi duplicate key; master key, passkey, skeleton key
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