To end.(1) For leases,this term implies an ending before the natural expiration time, as by default.When reviewing leases, pay close attention to the rights and responsibilities “upon termination”or “at expiration,”because these are two completely different circumstances. (2) For partnerships, it means the end of the partnership business and affairs, although that might technically be before formal dissolution of the partnership.(3) Under the Uniform Commercial Code,it means legally ending a contract,without default by either side.