How SL.O Works
SL.O (Secret Language Online) is a constructed language: a language designed on purpose, in the same tradition as Esperanto, Toki Pona or Klingon. It is not a cipher and it is not English written in different letters. It has its own sounds, its own word-building rules and its own sentence structure.
1. A writing system with 30 letters
SL.O has seven vowels and twenty-three consonants. Each letter stands for exactly one sound and there are no silent letters, so you can always read a word aloud once you know the letters. Text can be written in Roman letters (for typing) or in the original SL.O symbol script. Both always match. See the alphabet guide.
2. Words that follow sound rules
Every SL.O word is built from simple syllables (an optional consonant, a vowel and an optional final consonant). Only certain consonant clusters and word endings are allowed, which makes the language easy to pronounce. A validator checks each dictionary word against these rules and against duplicates.
3. A grammar of its own
SL.O puts the verb last (subject, object, verb), uses endings to show tense and number, and has a small marker for “the”. It has no grammatical gender. Here is a first look:
| English | SL.O (Roman) |
|---|---|
| I drink water. | Mi naru pit. |
| I drank water. | Mi naru pit-ta. |
| I will drink water. | Mi naru pit-va. |
| I do not drink water. | Mi naru ba pit. |
| Do you drink water? | Tu naru pit ka? |
| Drink water! | Naru pit-ku! |
The full rules are in the grammar guide.
4. How the translator works
The translator is rule-based. It splits your text into sentences and words, finds the verb, subject and object, detects tense, negation and questions, looks every word up in the SL.O dictionary, adds the right endings and puts the words in SL.O order. It then translates the result back to English and compares it with your original. If the two do not match exactly, the sentence is written in a word-for-word literal mode so that nothing is ever lost. No paid translation service is used and your text stays in your browser.
5. What it cannot do yet
SL.O is young. The dictionary is still growing, so many English words appear as spelled loanwords until a real SL.O word exists. Some English constructions, such as relative clauses (“the man who…”), are not covered by the grammar rules yet and are shown in literal mode. We mark these cases clearly instead of guessing.