鋼こう鉄てつ

こ

う

て

つ

Common wordFreq.FrequencyTop 20,000

Meanings

1

noun

Refers to steel as a strong iron-based material; common in industrial, construction, military, and figurative descriptions of hardness or strength.

鋼はがね
Also means steel, but is often a more general native word and can sound more poetic or material-focused; 鋼鉄 is a Sino-Japanese compound common in technical or descriptive contexts.
鉄てつ
Means iron, the base metal; 鋼鉄 specifically means steel, an iron-based alloy.

A Sino-Japanese compound written with 鋼, meaning steel, and 鉄, meaning iron; the spelling directly reflects the material sense.