Glossary
The reference definitions to understand the vocabulary of GEO, AEO and AI search without getting lost among the acronyms.
The vocabulary around GEO evolves fast and the terms often overlap. This glossary gives a short definition and a usage context for each key term.
Each entry links to the guides and product pages that let you move from the definition to a concrete use.
Generative Engine Optimization
The set of practices aimed at understanding, measuring and improving how a brand appears in answers generated by AI engines.
AI Search Optimization
The set of practices aimed at improving how a brand, a piece of content or a source is picked up in AI-assisted answer engines.
Answer Engine Optimization
The set of practices that make a brand, a page or a source more likely to be picked up in a direct answer provided by an engine or an assistant.
Grounding
The mechanism that lets an AI engine base its answer on sources retrieved at query time.
Entity SEO
The work that helps engines recognize a brand as a clear, distinct entity.
AI Overviews
The generated summary that Google displays above classic organic results.
Citation rate
The KPI that measures how often a brand is cited in AI answers.
Prompt engineering (for GEO monitoring)
The methodical construction of the prompts used to track a brand in a comparable way.
Zero-click search
When a generated answer is enough for the user, with no click to the source.
Share of voice in AI
A brand’s share of presence against its competitors in generated answers.
Agentic browsing
A site’s ability to be understood and operated by an AI agent, beyond being cited in an answer.
llms.txt
The file at a site’s root that summarizes its content in plain language for language models.
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