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river
한강은 서울을 흐르는 큰 강이다.
The Han River flows through Seoul.
large river
아마존 강은 세계에서 가장 긴 강이다.
The Amazon River is the longest river in the world.
military rank (sergeant)
그는 군에서 강으로 복무했다.
He served as a sergeant in the military.
When '강' is used in a military context, it refers to the rank of sergeant. In a geographical context, it refers to a large river.
The most common meaning of '강' is 'river', especially in geographical contexts.
Derived from Middle Korean '강' (gang), meaning 'large river' or 'military rank'.
The word '강' can refer to both a large river and a military rank, but the context usually makes the meaning clear.