Loan Lingo: Understanding Personal Loan Terminology

Written by WithU Insights Team | July 21, 2025

Understanding Personal Loan Terminology 

When you need money or make a large purchase, the odds are you will need to secure a loan. While getting one isn’t rocket science, it can feel a bit overwhelming. There are several words that could be confusing or make you feel like you are reading in a foreign language.  

 

Don’t fret! We’ve compiled a list of the top 20 loan-related words so you can be knowledgeable and feel more prepared when setting out to get your loan.  

  1. Principal 
    The original amount of money you borrow, not including interest or fees. 
  2. Interest Rate 
    The percentage the lender charges you for borrowing money. It can be fixed (stays the same) or variable (can change). 
  3. APR (Annual Percentage Rate) 
    The total yearly cost of borrowing money, including interest and most fees. It gives a more complete picture than the interest rate alone. 
  4. Term 
    The length of time you have to repay the loan, usually stated in months or years (e.g., 36 months or 5 years). 
  5. Loan Agreement 
    A legal document that outlines the terms and conditions of the loan between the borrower and lender. 
  6. Secured Loan 
    A loan backed by collateral (like a house or car). If you don’t repay, the lender can take the collateral that you agreed to use (known as your asset). 
  7. Unsecured Loan 
    A loan not backed by collateral. Approval is usually based on your credit score and income. 
  8. Collateral 
    Property or assets pledged by a borrower to secure a loan. This is used by the lender to recover losses if the loan is not repaid. 
  9. Cosigner 
    A person who agrees to repay the loan if the borrower can’t. This helps borrowers with lower credit get approved. 
  10. Amortization 
    The process of spreading out loan payments over time. Each payment reduces both interest and principal. 
  11. Prepayment 
    Paying off a loan (or part of it) before the due date. Some loans have prepayment penalties, which means you pay a fee for paying early. 
  12. Default 
    Failing to repay a loan according to the terms. This can damage your credit and lead to legal action. 
  13. Delinquency 
    A loan payment that is late but hasn’t yet gone into default. 
  14. Origination Fee 
    A one-time charge by the lender for processing a new loan. It’s usually a percentage of the loan amount. 
  15. Underwriting 
    The process lenders use to evaluate a borrower’s creditworthiness and risk level. 
  16. Debt-to-Income Ratio (DTI) 
    A comparison of your monthly debt payments to your monthly income. Lenders use this to assess your ability to repay. 
  17. Refinancing 
    Replacing an existing loan with a new one, usually to get a better interest rate or change the loan term. 
  18. Deferment 
    A temporary pause on loan payments, often used with student loans. 
  19. Forbearance 
    A temporary reduction or suspension of loan payments, typically granted during financial hardship. 
  20. Balloon Payment 
    A large, one-time payment at the end of a loan term, often used in certain types of short-term loans.