We face a lot of risks in our daily lives. Some of these lead to financial losses. Insurance is a way of protecting against these financial losses. For a payment (premium), an insurance company will take the responsibility of compensating your financial losses.
Insuring anything other than human life is called general insurance. Examples are insuring property like house and belongings against fire and theft or vehicles against accidental damage or theft. Injury due to accident or hospitalisation for illness and surgery can also be insured. Your liabilities to others arising out of the law can also be insured and is compulsory in some cases like motor third party insurance.