Pronounced "LOWZH-bahn"

What Is Lojban?

Lojban is a carefully constructed spoken language designed in the hope of removing a large portion of the ambiguity from human communication. It was made well-known by a Scientific American article and references in both science fiction and computer publications. Lojban has been built over five decades by dozens of workers and hundreds of supporters.

While there are many artificial languages, Lojban has a number of features which make it unique:

• Lojban is designed to be used by people in communication with each other, and possibly in the future with computers.
• Lojban is designed to be culturally neutral.
• Lojban grammar is based on the principles of logic.
• Lojban has an unambiguous grammar.
• Lojban has phonetic spelling, and unambiguous resolution of sounds into words.
• Lojban is simple compared to natural languages; it is easy to learn.
• Lojban's 1300 root words can be easily combined to form a vocabulary of millions of words.
• Lojban is regular; the rules of the language are without exception.
• Lojban attempts to remove restrictions on creative and clear thought and communication.
• Lojban has a variety of uses, ranging from the creative to the scientific, from the theoretical to the practical.

This site is the official repository of materials from The Logical Language Group (the LLG), the non-profit corporation which has led Lojban development since 1987.