noun
simple post office
A small-scale post office, often operated by a contracted local business, offering basic postal services.
この村には簡易郵便局が一軒ある。
There is one simple post office in this village.
A standard post office, typically larger and offering a full range of services, unlike a 簡易郵便局 which is smaller and more limited.
Compound of 簡易 (simple, easy) and 郵便局 (post office).