陣

Compound ideogram:

阜 (언덕 부) — hill, mound, often used as a radical for “place, terrain”

車 (수레 차) — cart, chariot, representing military vehicles

Together depict chariots lined up along a terrain/embankment, hence “battle formation, to set up a camp.”

陣地 (진지) — position, stronghold

出陣 (출진) — to go into battle

敵陣 (적진) — enemy camp

陣列 (진열) — battle array, line-up

陣痛 (진통) — labor pains (metaphoric extension)

Often used as a suffix to indicate a group or occurrence, e.g. 一陣風 (a gust of wind), 一陣笑 (a burst of laughter).

Interchangeable or confused historically with 陳 (베풀 진/늘어놓을 진), but meanings diverged: 陣 specialized for military/crowd contexts, 陳 for display/arrangement.