The common law is not contract, but rather power. For the kingdom of God is not in word, but in power. California law, for example, is founded in common law. Every interchange between people is contract. Also arguable as above, with the Ballentine's definition.
All commerce is contract.
This one, at least, is true. A thing personal and movable. It may refer to animate as well as inanimate property. The Uniform Commercial Code is the general body of law governing commercial or mercantile transactions. It has been adopted in whole or substantially by all the states of our Union, and I believe by most of the countries worldwide as well.