For the purposes of this article:
(1) "Renewal" or "to renew" means the issuance of or the offer to issue by an insurer a policy succeeding a policy previously issued and delivered by the same insurer or an insurer within the same group of insurers, or the issuance of a certificate or notice extending the term of an existing policy for a specified period beyond its expiration date.
(2) "Nonpayment of premium" means the failure or inability of the named insured to discharge when due any obligation in connection with the payment of premiums on a policy of insurance subject to this article, whether such payment is payable directly to the insurer or its agent or indirectly payable under a premium finance plan or extension of credit.
(3) "Cancellation" means termination of a policy at a date other than its expiration date.
(4) "Expiration date" means the date upon which coverage under a policy ends. It also means, for a policy written for a term longer than one year or with no fixed expiration date, each annual anniversary date of such policy.
(5) "Nonrenewal" means termination of a policy at its expiration date.