Antimatter

A free semantic database of English words, their meanings, and connections, provided as a set of data tables to give projects structured language knowledge for games, creative work, communications, and research. It is for developers and general consumers, including nonprofit and commercial teams building products on English. It is delivered as downloadable tables covering associations, senses, and definitions, built from handcrafted lexicography combined with over 130 million LLM inferences ranked and normalized for consistency across the vocabulary.

Key features

• Word associations tables
• Word senses tables
• Antonyms tables
• Word families tables
• Definitions tables
• Clues tables
• Word commonality and familiarity scores
• Ranked associations across vocabulary