The following is the meaning of insurance by some of the best sites. do read what each sites have to say and let me know if any other sites too have best meaning of insurance.

Insurance

A contract (policy) in which an individual or entity receives financial protection or reimbursement against losses from an insurance company. The company pools clients' risks to make payments more affordable for the insured.

Investopedia Says: When shopping around for an insurance policy, look for the best priced package that is right for you - prices can vary from one insurance company to the next. And make sure you know what you want. Some individuals, for example, prefer 24-hour claims service or face-to-face contact with an insurance representative. Also consider the claims settlement process, the amount of the deductible and the extent of the replacement coverage. Insurance companies and the policies they offer are not all the same, so think about more than just the price.

Barron's says:System whereby individuals and companies concerned about potential hazards pay premiums to an insurance company, which reimburses (in whole or part) them in the event of loss. The insurer profits by investing the premiums it receives. Some common forms of insurance cover business risks, automobiles, homes, boats, worker's compensation, and health. Life insurance guarantees payment to the beneficiaries when the insured person dies. In a broad economic sense, insurance transfers risk from individuals to a larger group, which is better able to pay for losses.

Britannica says: Contract that, by redistributing risk among a large number of people, reduces losses from accidents incurred by an individual. In return for a specified payment (premium), the insurer undertakes to pay the insured or his beneficiary a specified amount of money in the event that the insured suffers loss through the occurrence of an event covered by the insurance contract (policy). By pooling both the financial contributions and the risks of a large number of policyholders, the insurer is able to absorb losses much more easily than is the uninsured individual. Insurers may offer insurance to any individual able to pay, or they may contract with members of a group (e.g., employees of a firm) to offer special rates for group insurance. Marine insurance, covering ships and voyages, is the oldest form of insurance; it originated in ancient times with loans to shipowners that were repayable only on safe completion of a voyage, and it was formalized in medieval Europe. Fire insurance arose in the 17th century, and other forms of property insurance became common with the spread of industrialization in the 19th century. It is now possible to insure almost any kind of property, including homes, businesses, motor vehicles, and goods in transit.

Encyclopedia says :insurance or assurance, device for indemnifying or guaranteeing an individual against loss. Reimbursement is made from a fund to which many individuals exposed to the same risk have contributed certain specified amounts, called premiums. Payment for an individual loss, divided among many, does not fall heavily upon the actual loser. The essence of the contract of insurance, called a policy, is mutuality. The major operations of an insurance company are underwriting, the determination of which risks the insurer can take on; and rate making, the decisions regarding necessary prices for such risks. The underwriter is responsible for guarding against adverse selection, wherein there is excessive coverage of high risk candidates in proportion to the coverage of low risk candidates. In preventing adverse selection, the underwriter must consider physical, psychological, and moral hazards in relation to applicants. Physical hazards include those dangers which surround the individual or property, jeopardizing the well-being of the insured. The amount of the premium is determined by the operation of the law of averages as calculated by actuaries. By investing premium payments in a wide range of revenue-producing projects, insurance companies have become major suppliers of capital, and they rank among the nation's largest institutional investors.