Languages are grouped into families.
- Tai languages
- [Unique languages]?
- Classification uncertain
- Proper classification not known by contributor who added them:
- Sign languages
- American Sign Language (ASL)
- Chinese Sign Language (CSL)
- [Hong Kong Sign Language]? (HKSL)
- [Indian Sign Language]? (INS)
- [Japanese Sign Language]? (JSL)
- [Korean Sign Language]? (KVK)
- [Malaysian Sign Language]? (BMT)
- [Nepalese Sign Language]? (NSP)
- [Philippine Sign Language]? (PSP)
- [Sri Lankan Sign Language]? (SQS)
- [Taiwanese Sign Language]? (TSS)
- [Thai Sign Language]? (TSQ)
- [British Sign Language]? (BSL)
- [Italian Sign Language]? (LIS)
- Artificial languages
- Languages of fictional worlds and peoples:
- Language games
/Talk?