With different pronunciations:
* bow (to bend at the waist) vs. bow (a weapon)
* lead (a metal) vs. lead (to guide)
* wind (air in motion) vs. wind (to turn)
* read (present tense) vs. read (past tense)
With the same pronunciation:
* bat (a flying mammal) vs. bat (a piece of equipment used in baseball)
* minute (a unit of time) vs. minute (tiny)
* object (a thing) vs. object (to disagree)
* tear (a drop of liquid from the eye) vs. tear (to rip)
Let me know if you want more examples!