What do you call words that are spelled the same but sound defferently?

Words that are spelled the same but pronounced differently are called homographs.

Here are some examples:

* bow (to bend) vs. bow (a weapon)

* lead (a metal) vs. lead (to guide)

* tear (to rip) vs. tear (a drop of liquid from the eye)

It's important to note that homographs are different from homophones, which are words that sound the same but are spelled differently.