Pre-order means you order certain product in advance in stated period of time, before the product is available. This pre-order has deadline and once it is passed the stated time, you can't pre-order anymore.
Pre-order artinya order barang di muka dalam kurun waktu yang sudah ditentukan oleh perusahaan barang tersebut, sebelum barang nya tersedia di pasaran. Pre-order ada batas waktu nya, jika sudah lewat waktu, maka pre-order sudah tidak berlaku lagi.
