It's possible you're thinking of:
* A homograph: A word that is spelled the same as another word but has a different meaning and may or may not have a different pronunciation (e.g., "lead" the metal vs. "lead" to guide).
* A minute: A unit of time equal to 60 seconds.
It's important to remember that "minute" refers to time and has no connection to homographs. If you have a different term in mind, please clarify your question.