How to use "contract" in a sentence

Again, if the United States be not a government proper, but an association of States in the nature of contract merely, can it, as a contract, be peaceably unmade by less than all the parties who made it? One party to a contract may violate it - break it, so to speak; but does it not require all to lawfully rescind it?

If audience reaction was as strong and as positive as Tina hoped, her financial future was assured, for her contract gave her two and one-half percent of the gross receipts, minus liquor sales, after the first five million

The intense cold had caused the wood to contract and warp

I wanted to use him in Magyck! , but he was tied up in an exclusive contract with a chain of Reno-Tahoe hotels