to back order
01
待機リストで注文する, 予約注文する
to request or take an order for a product that is not currently in stock, to be delivered when it becomes available
例
The customer back-ordered the popular laptop until the next shipment arrived.
顧客は次の出荷が到着するまで人気のノートパソコンをバックオーダーしました.
Back order
01
バックオーダー、補充中
a situation where a product is temporarily out of stock but can be ordered for future delivery
例
My phone case is on back order, so I'll have to wait a bit longer.
私のスマホケースはバックオーダー中なので、もう少し待たなければなりません。
