Mich. Comp. Laws § 700.1108: Definitions; U to Z.

Sec. 1108.

As used in this act:

"Ward" means an individual for whom a guardian is appointed.

"Will" includes, but is not limited to, a codicil and a testamentary instrument that appoints a personal representative, revokes or revises another will, nominates a guardian, or expressly excludes or limits the right of an individual or class to succeed to the decedent's property that is passing by intestate succession.