Lontar is the Indonesian word for the leaf of the Borassus flabellifer palm tree. However, depending on the region or language, there are several synonyms for this term. In Bali, it is referred to as "palmyra," while in Java, it is commonly known as "tar." In Malay, it is called "daun lontar," and in the Philippines, it is called "buri leaf." Other synonyms include "palm leaf," "fan palm," and "wine palm." Lontar has been used for centuries in Southeast Asia for various purposes, such as writing materials, roofing, and fuel. Its unique qualities make it a vital resource in many communities.