Lojban · la .lojban.

Directory 9 resource listings · constructed / fictional. A short orientation and a solid starting list.

Lojban is a hobby/constructed path here: use community grammars and media from the list, and treat studio canons as fandom references — not school credit. Last reviewed 2026-08-01

About Lojban

Language family
Constructed (logical / engelang)
Source: Glottolog
Where it's spoken
Worldwide learner community
Speakers
small fluent community; active online learners
Writing
Latin

Lojban is a carefully engineered logical language based on predicate logic, designed for unambiguous expression. It is an original constructed language (not fiction IP) with a complete baseline grammar, a finite root vocabulary (gismu), and long-running community tools. Expect a steeper conceptual curve than Esperanto — rewarding if you like grammar systems.

Speaker counts are approximate orders of magnitude for learners, not census figures. Family labels follow Glottolog-style classification; vitality notes (when shown) follow UNESCO WAL / Ethnologue-style framing and should be re-checked for program planning.

How to start

  1. Pick one free course (or free-with-upgrades) below and finish a short beginner unit before hopping apps.
  2. Bookmark one dictionary or grammar reference and look up every unknown word for a week.
  3. Drill vocabulary with starter words.
  4. When ready, use a tutor marketplace listing below for short speaking sessions.

Practice on this site

Deep links into trainers and drills that already cover Lojban.

Starter words

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Resource Type Levels Cost Verified
gismu list
Canonical root-word list.
reference A1-B2 free
jbovlaste dictionary
Living dictionary of gismu, cmavo, and lujvo.
reference A1-C1 free
Language Creation Society
Broader conlang craft context.
reference A2-C1 free
Omniglot Lojban
Language overview.
reference A1-A2 free
Reddit r/lojban
Learner discussion and translation practice.
reference A1-C1 free
The Complete Lojban Language (CLL)
Baseline reference grammar.
reference A2-C2 free
Wiktionary Lojban
Open dictionary entries.
reference A1-B2 free

Know a better classroom-friendly resource for Lojban? Suggest it with attribution.