Definition
Irons are the most common club in your bag. Typically, you will carry a 4-iron, 5-iron, 6-iron, 7-iron, 8-iron, and 9-iron. Occasionally, you might carry a 3-iron or 2-iron, but most amateurs will opt for a hybrid to replace these longer irons instead.
Usage
I just got a brand new set of Taylormade irons!