Artificial Languages

They're actual languages, possessing vocabulary and grammar, but they were contrived by eggheads. Some of them require custom alphabets. There are thousands of such languages; here are just a few of the most famous.

• Atlango
• aUI
• Cispa
• E-Prime
• Earth Minimal
• Esperanto
• Ido
• Interlingua
• Klingon, a language of Star Trek
• LANG53
• Loglan
• Lojban
• Neo
• NGL
• Novial
• Occidental
• Romanova
• Üqoi
• Ygyde

The early history of artificial language is intertwined with the occult, and the desire for a real character (in other words, the One True Word that all humans, no matter their original tongue, would understand.)

Esperanto