Contracts can be terminated through various means:

1. **Performance:** When both parties fulfill their contractual obligations, the contract is considered fulfilled and naturally terminates.

2. **Agreement:** Parties may mutually agree to terminate the contract, as specified in a termination clause or through a new agreement.

3. **Breach:** If one party fails to meet its contractual obligations, the other party may choose to terminate the contract due to the breach.

4. **Frustration:** If unforeseen events make the contract impossible to perform, it may be terminated due to frustration.

5. **Impossibility:** If performance becomes legally or physically impossible, the contract may be terminated.

6. **Operation of Law:** Changes in law or circumstances may lead to the automatic termination of a contract.

Termination methods and consequences often depend on the terms specified in the contract and applicable laws.