Borrowed on refers to taking out a loan or borrowing money from a lender, usually with an interest rate. There are several synonyms for the term borrowed on, including borrowed against, mortgaged, pledged, pawned, and secured. These all imply the same action of using collateral to obtain funding. Borrowed against specifically refers to using a pre-existing asset as security for a loan. Mortgaged refers to borrowing against property, usually a house. Pledged and pawned refer to using personal property as collateral for a loan. Secured simply means that the loan is backed by some form of collateral. Regardless of the term used, the basic concept remains the same - getting a loan by pledging something valuable.