陸

Phono-semantic compound:

阝 (언덕 부, “hill, mound”) — semantic element, indicating relation to land or terrain.

坴 (륙, “high ground, elevated land”) — phonetic element, giving sound and reinforcing meaning of “elevated land.”

Thus originally meaning “raised ground, dry land, landmass.”

大陸 (대륙) — continent, mainland

陸地 (육지) — land, dry land

登陸 (상륙) — to land, disembark

陸軍 (육군) — land army, army forces

內陸 (내륙) — inland

Contrasts with 海 (해, “sea”): 陸 = land, 海 = sea.

In modern Chinese and Japanese, 大陸 (“continent”) often refers to mainland China in particular.

As a variant of 六 (six), 陸 is used in some historical texts, names, and legal numbering systems.