2iron adjective
1 : made of iron
▪ iron bars/chains ▪ an iron fence 2 always used before a noun : very strong
▪ He has an iron constitution. [=he is very strong and healthy] ▪ She has an iron will. [=she is very determined to get what she wants] ▪ an iron grip
▪ iron bars/chains ▪ an iron fence
▪ He has an iron constitution. [=he is very strong and healthy] ▪ She has an iron will. [=she is very determined to get what she wants] ▪ an iron grip
iron man
: a man who is very strong and is able to do something (such as play a sport) for a long time without injury or illness
rule with an iron fist/hand, rule with a rod of iron — see 2rule



