Other forms: liens
A lien is a claim against the property of someone who owes money. It's pronounced like "lean," which might also describe your meager finances if a lien has been placed on your home.
When someone doesn't make payments on a loan, the bank may put a lien on that person's property, claiming ownership of that property until the overdue payment is received. The word lien derives from the Latin ligāre, which means "to bind," and you can see that "binding," or tying up a person's property, really does put the owner in a "bind."