1) Debtor 2) Freeloader 3) Lendee 4) Lienee 1) Library patron 2) Loan receiver 3) Person using a library card 4) Receiver 5) Recipient 6) Victim of a certain shark 
• (n.) One who borrows.
A person who receives funds in the form of a loan with the obligation to repay the loan in full.
Bor'row·er noun One who borrows. « Neither a borrower nor a lender be. Shak. » 
A person who uses library materials on a loan basis
A person or entity to whom money or other property is loaned at his request.
[n] - someone who receives something on the promise to return it or its equivalent
noun someone who receives something on the promise to return it or its equivalent
a person who has been approved to receive a loan and is then obligated to repay it and any additional fees according to the loan terms.