N.C. Gen. Stat. § 45-67
Definitions.
§ 45-67. Definitions.
The following definitions apply in this Article:
(1) Advance. - A disbursement of funds or other action that increases the outstanding principal balance owing on an obligation for the payment of money.
(2) Security instrument. - A mortgage, deed of trust, or other instrument relating to real property securing an obligation or obligations to a person, firm, or corporation specifically named in such instrument for the payment of money.