steel

noun1 of 2

very strong metal made of iron and other substances mixed together

• “The sword is banded with steel to make it stronger.”Tatoeba
• “That town is the center of the steel industry.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

verb2 of 2

To harden or strengthen; to nerve or make obdurate; to fortify against.