Mo. Rev. Stat. § 416.021: Definitions.

Unless a different meaning is clearly indicated by the context, for the purposes of sections 416.011 to 416.161:

(1) "Commodity" means any kind of real, personal or mixed property, but does not include the labor of a human being;

(2) "Person" means any individual, corporation, firm, partnership, incorporated or unincorporated association or any other legal or commercial entity;

(3) "Service" means any kind of activity performed in whole or in part for financial gain but does not include labor which is performed by individuals as employees of others;

(4) "Trade or commerce" means any economic activity involving or relating to any commodity or service.