What is risk? Risk is uncertainty.
Insurance is based on risk.
Risk as it relates to insurance, is the possibility or chance of loss. There are different levels of risk. The more likely a loss is to occur the higher the frequency of that event. Severity of loss relates to the value at risk.
Example: A cottage in the country, miles from the nearest water source, presents an increased possibility of a serious fire - it’s riskier than a brick house that’s across the street from a fire hydrant.
Definitions
A peril is an event that will give rise to a loss. Examples include: fire, theft, storm, explosion.
A hazard is a factor which may influence the outcome of a loss. Examples include: slippery sidewalks, poorly maintained property.
Classifications of Risk
Speculative risk has a chance for profit or loss. Examples include: gambling, starting your own business. These risks are not insurable.
Pure risk has a chance for loss only. Examples include: leaving your car unlocked, storing flammable liquid in your basement close to the furnace. Pure risk can be insured.