iron

noun1 of 2

the hard metal used to make steel (symbol Fe)

• “It's always good to have several irons in the fire.”Tatoeba
• “The car is waiting in front of the iron gate.”Tatoeba

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

adjective2 of 2

Strong (as of will), inflexible.