DIL is the current currency in Dekaron. Many people wonder: "What does DIL mean?" Well, DIL is similar to the spanish word "Dile", which means "Tell."
It is also possible that DIL is just a name given by the developers not meant to mean anything. However, the name is conspicuously similar to Final Fantasy's currency, Gil, so this may be a reference to that.
Please edit this page with what it means if you have an idea of what it means.