Welcome to The ASJP Database

The database of the Automated Similarity Judgment Program (ASJP) aims to contain 40-item word lists of all the world's languages. A lexical distance can be obtained by comparing the word lists, which is useful, for instance, for classifying a language group and for inferring its age of divergence. Click the Help link for further instructions, and for more background visit Wikipedia.

How to cite:

Wichmann, Søren, Eric W. Holman, Cecil H. Brown, Matthew S. Dryer, and Qibin Ran (eds.). 2025. The ASJP Database (version 21).

Wordlists 11,540
Synsets511,960
Words568,820
Distinct Ethnologue families282
Distinct Glottolog families 406
Distinct ISO 639-3 languages6,135
Missing ISO 639-3 languages 1,609