(r) "Lien" means a charge against or interest in goods to secure payment of a debt or performance of an obligation, but the term does not include a security interest.

"Lien" means any lien created by operation of law and not by contract or agreement with respect to a vehicle and includes all liens mentioned in Code Section 441432044-14-320, other than that in paragraph (5) thereof, and all liens for taxes due the United [...]