One way to hold this word: the face a shop turns to the street. Glass, a door, a sign, and whatever is set out in the window for people walking past. Two things follow from a face. Anything can wear it — a church or a law office can take over that glass front and be known by it. And it can be moved — a page on a screen is now the first thing a customer sees, so English hands the same word to it.
可以想成「一家店朝著街道露出來的那張臉」。玻璃、一扇門、一塊招牌，還有櫥窗裡擺給路人看的東西。既然是一張臉，就會有兩件事跟著發生。第一，別的東西也可以戴上它：教會或律師事務所租下那片玻璃門面，就被人用這個字稱呼。第二，它可以被搬走：現在顧客先看到的是螢幕上的頁面，英文就把同一個字交給了它。
From the word’s history
From store + front. The compound says its own meaning: the front of a store.
由 store（店）加 front（正面）組成。這個複合字幾乎自己就把意思說完了：店的正面。
Wiktionary etymology supplied in this packet (kaikki extract, source_ref kaikki:3f6f69a190036ae4:1226634917): “From store + front.”
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