Cancellation: Ending your policy before your period of insurance ends. This may include a cancellation fee. Depending on your policy terms, you may need to pay an additional amount or receive a partial refund.
Car insurance groups: A classification system, usually numbered 1 to 50, that insurers use to reflect a car's cost to repair, its performance and other risk factors, when working out your premium.
Car alarm: An anti-theft device fitted to your car that sounds an alert if someone tries to break in or steal it.
Certificate of motor insurance: Your legal proof of car insurance. It shows which car is covered, who's allowed to drive it, and what it can be used for.
Charging cable cover: Cover some insurers offer as an optional extra for the cables used to charge an electric or plug-in hybrid car, protecting against loss, theft or damage.
Claim: A request you make to your insurer for a payment or repair, following a loss, damage or accident covered by your policy.
Class of use: How you use your car – for example, social use, commuting, or business use. Your premium reflects the class of use you declare.
Classic car: For insurance purposes, a car over 15 years old may be considered a classic car, depending on its value. These often need specialist insurance that reflects their age, value and how they're used.
Comprehensive cover: The highest level of car insurance. It covers damage to your own car as well as your liability to third parties, and usually includes fire and theft.
Compulsory excess: The part of a claim you must pay for, set by your insurer and shown on your policy schedule.
Conviction code: A four-digit code on your driving licence that identifies a specific motoring offence, such as speeding or careless driving.
Courtesy car: A temporary replacement car your insurer may provide while yours is being repaired following a claim.
Cover note: Temporary proof of insurance issued while your full policy documents are being prepared, usually valid for a short period.