* Noun: When referring to a preserved body, especially an ancient one, it's a noun.
* Example: "The archaeologists discovered a well-preserved mummy in the tomb."
* Noun: When referring to a mother, it's a noun, often used affectionately or by children.
* Example: "Can I have a hug, Mummy?"
* Verb: When referring to the act of wrapping something, it's a verb.
* Example: "The ancient Egyptians mummified their dead."
So, to determine the part of speech, you need to consider the sentence and how the word is used.