[wikipedia] used either by purchasers of real property to raise funds to buy real estate; or alternatively by existing property owners to raise funds for any purpose, while putting a lien on the property being mortgaged
[dictionary] the interest percent that a bank or other financial company charges you when you borrow money, or the interest percent it pays you when you keep money in an account
[mtgprofessor] the number of years the lender has offered the borrower to repay the loan
Adjustable Rate Mortgage
[investopedia] A mortgage on which the interest rate, after an initial period, can be changed by the lender.
Fixed Rate Mortgage
[bankrate] A mortgage in which the monthly payment based on interest does not change