2026 reference · schema-first · solo-built
The vocabulary of Generative Engine Optimization.
Every term in modern AI search — GEO, AEO, AIO, LLMO, DefinedTerm schema, sub-document retrieval, agentic retrieval, and the rest — defined precisely, shipped with structured data, and tracked for citation by ChatGPT, Perplexity, Claude, and Copilot.
- Terms shipped
- 10
- With AI citation
- 0
- Engines tracked
- 4
Why this exists
AI search engines cite content with proper schema. Yet no one owns the vocabulary layer of this transition: the precise definitions, the canonical structured-data examples, the live measurement of which engines cite what.
GEO Glossary fills that gap. Each entry is a DefinedTerm JSON-LD record, hand-edited, with a per-engine citation tracker updated weekly.