* Homograph: Words that are spelled the same but have different meanings and often different pronunciations.
* Pice: This likely refers to a piece, as "pice" is not a common word in English.
* Hair: This refers to the strands growing on the head.
Therefore, you're asking for a word that is spelled the same as "a pice hair" but has a different meaning. Since there's no other word that is spelled exactly the same, there's no homograph.
It's possible you meant to ask about a synonym for "a piece of hair", or a word with a similar sound, but that's not a homograph.