a particular loan this is subordinate to a particular Primary Lender

a relatively large, unsecured loan (a loan that is not backed by a pledging of assets) with a maturity of at least five years

A second mortgage. It usually bears interest at a higher rate than secured loans and sometimes carries the option to give the lender a stake in the equity.

A Mezzanine Loan is a relatively large loan, typically unsecured (ie., not backed by a pledging of assets) or with a deeply subordinated security structure (e.g., third lien on the property but non-recourse vis-a-vis the borrower). Maturities usually exceed five years with the principal payable at the end of the loan term. In a standard offer, the loan carries a detachable warrant (finance) (the option to purchase a certain number of shares of stock or bonds at a given price for a certain period of time) or a similar mechanism to allow the lender to share in the future success of the business.