noun
anonymous shipping; anonymous delivery
A service where the sender's personal information is not disclosed to the recipient, commonly used in online marketplaces and auction sites.
フリマアプリでは匿名配送を選ぶと、お互いの住所を知らせずに取引できます。
On flea market apps, if you choose anonymous shipping, you can complete the transaction without sharing each other's addresses.
Compound of 匿名 (とくめい, 'anonymous') and 配送 (はいそう, 'delivery/shipping').