It's a bit of a trick question! Homographs are words that are spelled the same but have different meanings and sometimes different pronunciations. "Step" has multiple meanings, so it's a homograph of itself!
Here are a couple of examples of how "step" can be used differently:
* I took a step forward. (meaning to move your foot)
* He climbed the steps to the attic. (meaning a stair)
* This is a step in the right direction. (meaning a stage in a process)