A state in which something (goods, tickets, etc.) has been completely sold and is no longer available for purchase.
人気商品は午前中に売り切れになった。
The popular item sold out in the morning.
店の入り口に『売り切れ』の張り紙が貼ってあった。
There was a 'Sold Out' sign posted at the shop entrance.
オンラインでは数分で売り切れになることが多い。
Online items often sell out within minutes.