Language & Words
Constructed Languages Quiz
From Esperanto's utopian dream to Klingon's warrior poetry — languages built from scratch.
From Esperanto's utopian dream to Klingon's warrior poetry — languages built from scratch.
Constructed languages — also called conlangs — are languages that were deliberately designed rather than naturally evolved. J.R.R. Tolkien is perhaps the most famous conlang creator, having invented more than 15 languages before writing a single word of his novels, with Quenya and Sindarin forming entire poetic traditions complete with scripts, grammar rules, and literary histories. From the 19th-century idealism of Esperanto to the Hollywood creations of Klingon and Na'vi, constructed languages reveal the deepest questions about what language actually is and why humans create it.
Each of the 50 questions covers a different constructed language or aspect of language design — from the historical context of a language's creation to its grammatical structure, vocabulary size, and cultural impact. You'll be asked about creators, dates, phonology, syntax, scripts, and the communities that keep these languages alive. After each answer, a detailed explanation provides the broader story behind the fact.
You'll explore the difference between international auxiliary languages (IALs) like Esperanto and artistic languages like Tolkien's Elvish. You'll learn about the linguistic ingenuity behind Klingon's object-verb-subject word order, Na'vi's ejective consonants, Toki Pona's radical minimalism with only around 120 words, and the music-based Solresol. You'll also discover the Language Creation Society, the Klingon Language Institute, and the passionate global communities keeping conlangs alive today.
Esperanto is by far the most widely spoken constructed language, with estimates ranging from 100,000 to 2 million speakers worldwide. Created in 1887 by Polish-Jewish ophthalmologist Ludwig Lazarus Zamenhof under the pseudonym "Doktoro Esperanto" (meaning "one who hopes"), the language was designed to be a universal second language with a highly regular grammar and just 16 rules. It has a small number of native speakers — children raised in Esperanto-speaking households — and is supported by Google Translate and annual World Congresses.
Yes — Klingon is a fully functional language with its own grammar, vocabulary, and literature. Created by linguist Marc Okrand for the Star Trek franchise in 1984, Klingon (called tlhIngan Hol by its speakers) features an unusual object-verb-subject word order and a complex sound system. The Klingon Language Institute (KLI) promotes the language and has overseen translations of Shakespeare's Hamlet and other works. Duolingo has offered Klingon courses, and it is estimated that around 20–30 people are genuinely fluent.
Yes — Tolkien, a professional philologist and Oxford professor, created more than 15 languages with full grammars, scripts, and literary histories. Quenya was inspired by Finnish and Latin, while Sindarin drew on Welsh phonology. Khuzdul (the Dwarven tongue) has Semitic roots, and the sinister Black Speech was designed to sound harsh and domineering. Tolkien famously said he invented his languages before writing his stories — Middle-earth was essentially built as a world for his languages to live in. The writing systems Tengwar and Cirth are also fully functional scripts.
Last updated: March 2026