The Weather Stress Index, or WSI, is a relative measure of the weather conditions, often used as a comfort indicator. The index, a number between 0 and 100, represents the percentage of time in the past with temperatures below the current temperature, for a given location, day and time.
Best Answer:  A free lease means that the horse is leased to someone without any payment to the owner. Now, depending on the contract, the person leasing the horse may have to pay for board, vet, farrier, etc. although some lease agreements may require the owner to pay those bills.
Related to leasehold: freehold, Leasehold Improvements, leasehold interest, leasehold property. An estate, interest, in real property held under a rental agreement by which the owner gives another the right to occupy or use land for a period of time. n. the real estate which is the subject of a lease (a written rental agreement for an extended period of time). The term is commonly used to describe improvements on real property when the improvements are built on land owned by one party which is leased for a long term (such as 99 years) to the owner of the building.