This term refers to the width of the foot. As opposed to narrow feet, wide feet have a broader shape at their front, and the toes are also wider and have a higher instep. This generally leads to excessive movement, friction, and pain in the foot.
You may consider yourself having a wide foot if you are a size nine or even bigger, and your shoes are a bit hard to fit. It is also a good idea to measure your feet’ width because they can be wider than the length of your foot.