Wis. Stat. § 700.01: Definitions.

In this chapter, unless the context indicates otherwise:

(1) “Bill of sale” means an instrument evidencing a sale of tangible personal property which names the seller and buyer and describes the property sold.

(2) “Document of title” means a document which is evidence of ownership of certain kinds of personal property, tangible or intangible, the ownership of which may be transferred by transfer of the document; it includes but is not limited to an investment security, a negotiable instrument and a certificate of title to tangible personal property; it does not include items excepted in s. 700.22.

(3) “Instrument of transfer” means an instrument which is effective to transfer an interest in property; it includes but is not limited to a will, a deed, a contract to transfer, a real estate mortgage and an instrument creating a security interest in personal property under ch. 409.

(4) “Interest” means an interest in property.

(5) “Property” means real or personal property.

(6) “Successors in interest” means persons who obtain a reversionary interest by transfer or operation of law.

(7) “Transfer” means a transfer effective during the lifetime of the transferor or by reason of the transferor’s death.