遍

It is a phono-semantic compound, combining:

辵 (chwak/착, “to walk slowly, to go”) as the semantic element;

扁 (pyeon, “flat, small”) as the phonetic element.

Less frequent in everyday vocabulary, but appears in literary and religious language.

Common compounds:

일편 (一遍) – once, one time (esp. Buddhist repetition of chants);

만편 (萬遍) – countless times;

편재 (遍在) – omnipresence;

편야 (遍野) – all across the fields, everywhere.

Although the standard Korean reading is 편 (pyeon), in Buddhist terminology it is often conventionally read as 변 (byeon), so caution is needed.

In modern Chinese, it is commonly used as a measure word for frequency (one time, once), though it has a slightly different nuance from 次 (cì, “time, occurrence”).