The AI Dictionary of 3,600+ Terms

AI arrived with a vocabulary attached. Meetings, product pages, and the news now assume you know what an agent is, what RAG means, and why everyone keeps saying fine-tuning. This dictionary is the fast way to keep up.

It holds more than 3,600 artificial intelligence terms, from Agent to Zero-Shot, each defined in one or two plain sentences. Every definition says what kind of thing the term is and what it does. No math, no hype, and no jargon used to explain jargon. Related terms sit under each entry, so one lookup leads to the next thing worth knowing.

It covers the words behind the tools people already use at work, the classic terms that never went away, the agent vocabulary that arrived with AI assistants, and the acronyms that fill slide decks. Managers, developers, students, and anyone who meets these words mid-meeting can open it, find the term, and get back to the conversation in under a minute.

• More than 3,600 entries in 17 chapters by subject, with an A to Z index of every term, acronym, and other name
• Thumb tabs on the page edge, so a chapter can be found with the book closed
• Every entry says what kind of thing the term is and what it does, with related terms under it
• Editions are dated, so the fast-moving terms stay current

Suggest a term

Is a word missing, or a definition wrong? Say so here. The next edition folds in what readers send.

Addenda

Corrections and updates to the 2027 Edition are posted on the addenda page between editions.