墉

A defensive or fortified structure, typically denoting a rampart or heavy earthen barrier rather than a simple partition.

Frequently appears in the compound 城墉 (chéng yóng) as a hendiadys referring to collective fortifications. Typically serves as the object of verbs involving construction (築, 修) or destruction (破, 毀), and often functions as a locative marker for actions occurring atop or against defenses.

Distinguished from 城 (chéng), which often refers to the city as a political/administrative entity or the general outer perimeter of a settlement, and 牆 (qiáng), which generally denotes a boundary, residential, or partition wall. While 牆 lacks inherent military connotation, 墉 focuses on physical bulk and defensive function.

Exercise caution with the gloss "small wall"; in most classical contexts, the term emphasizes height and solidity. If the text contrasts 墉 with 牆, lean toward "rampart" or "fortification" to preserve the distinction between a strategic defense and a simple barrier.