Homograph

Simple English Wiktionary has the word meaning for:

homograph

A homograph is one of a group of words that have the same spelling but have different meanings. They can also have different pronunciations.

For example:

• Polish (nationality) and Polish (to make things shine)
• Dove (the bird) and dove (to dive)
• Present (a gift), present (to show), and present (to be somewhere)
• fine (feeling well),fine, (ect illegal parking )