(てつ)

てつ
noun
iron, steel
1. iron
A metallic element.
(てつ)(かた)
Iron is hard.
(てつ)できている
It's made of iron.
Strike while the iron is hot.
Proverb meaning: act while conditions are favorable.
2. steel
An alloy of iron.
A steel bridge spans across.

(てつ) refers to iron as a material, and by extension, steel and iron products.

Compounds

Common expressions

Similar materials

Slang

鉄板(てっぱん) also means "guaranteed" or "sure thing" in modern slang.