鉄(てつ) てつ noun iron, steel 1. iron A metallic element. 鉄(てつ)は硬(かた)い。🔊 Iron is hard. 鉄(てつ)でできている。🔊 It's made of iron. 鉄(てつ)は熱(あつ)いうちに打(う)て。🔊 Strike while the iron is hot. Proverb meaning: act while conditions are favorable. 2. steel Colloquially extended to steel and steel products; strictly speaking, 鋼 (はがね) is the distinct word for the refined alloy. 鉄(てつ)の橋(はし)が架(か)かっている。🔊 A steel bridge spans across. 地下鉄(ちかてつ)で通勤(つうきん)している。🔊 I commute by subway. 鉄道(てつどう)で旅行(りょこう)するのが好(す)きだ。🔊 I like traveling by rail. 鉄(てつ) refers to iron as a material, and by extension, steel and iron products.Compounds鉄道(てつどう): railroad, railway地下鉄(ちかてつ): subway鉄板(てっぱん): iron plate, griddle; also slang for "guaranteed"鉄砲(てっぽう): gun, firearm鉄橋(てっきょう): iron bridgeCommon expressions鉄(てつ)は熱(あつ)いうちに打(う)て: Strike while the iron is hotRelated words銅(どう): copper銀(ぎん): silver金(きん): gold鋼(はがね): steel (refined iron) Related Words Compare: 銅(どう) (copper) Compare: 銀(ぎん) (silver) Compare: 金(きん) (gold) Compare: 鋼(はがね) (steel) general Added 2026.1.9 21:22 · Revised 2026.10.9 22:43 02000/02225_tetsu