世間萬物的存在，必定有其存在的價值和意義，每一個事物的產生必定有其產生的根源，并非憑空而降。

Iron 鐵

在西亞古蘇美爾語中，鐵被叫做“安巴爾”，意思是“天降之火”（隕石）。古埃及人把鐵叫做“天石”。 在古人類發現鐵時，由于其堅硬的特性，被命名為 Iron（“鐵”），該詞源于拉丁語，意為“堅固”、“剛強”的意思。

鐵的元素符號“Fe”，源自拉丁文“Ferrum”，意指“鐵”，系該詞的 縮寫。

Iron is probably a Celtic contribution to English, but the borrowing took place in the prehistoric period, before the Germanic dialects separated, and so English shares the word with German (eisen), Dutch (ijzen), Swedish (järn), etc. The prehistoric Celtic form from which these all ultimately came was *īsarnon, which some have linked with Latin aes ‘bronze’ and Sanskrit isira- ‘strong’. The ancient Indo- European peoples had already split up into groups speaking mutually unintelligible tongues by the time iron came into general use, so there was never any common Indo-European term for it.

Iron Age 鐵器時代

Iron horse 火車

Iron man 通用攝像機

Iron ore 鐵礦石

Ironclad 裝甲的

Ironing 熨燙的

Ironmonger 鐵器商

Ironworks 鋼鐵廠