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37 Terms

AI Search Glossary

AI-powered search features, answer engines, and generative search optimisation including GEO, AEO, and citation-ready content strategies.

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AI Answer Audit

The process of systematically querying AI engines with target prompts and analysing whether, how, and how accurately a brand is cited in the responses.

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AI Citation

A source reference shown in AI-generated answers that attributes information to a specific webpage, publisher, or document.

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AI Search Index

A specialised index optimised for AI-powered search, often combining traditional search with vector embeddings.

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AI Search Visibility

The degree to which a brand, product, or service appears in AI-generated answers across engines such as Google AI Overviews, Perplexity, ChatGPT Search, and Bing Copilot.

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Answer Engine Optimisation

The practice of structuring content, entities and technical signals so that answer engines and AI features like AI Overviews can safely reuse your information in direct answers.

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Bing Copilot

Microsoft's AI-powered search experience built on GPT-4 and Bing's index, delivering conversational answers with citations alongside traditional search results.

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ChatGPT Search

OpenAI's web-search capability integrated into ChatGPT, which retrieves and cites live sources when responding to queries - making brand visibility in its index commercially important.

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Citation Confidence

A measure of how reliably an AI system can attribute generated content to source documents, important for AI Overviews.

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Citation Engineering

The practice of structuring content, evidence, and page architecture to increase the likelihood of accurate inclusion in AI citations.

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Citation Share

The percentage of AI-generated answers within a prompt set where a specific brand or domain is cited, relative to competitors.

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Citation-Ready Content

Content structured clearly enough to be reused safely by answer engines, with stable terminology, bounded claims, and supporting proof.

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Claim Boundary

A clear limit around what a page is claiming, including what is in scope, out of scope, and subject to conditions or constraints.

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Competitive Displacement

In a GEO context, the risk that a competitor is cited in AI answers instead of your brand for prompts where you should have authority.

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Decision-Stage Prompt

A search or assistant query used by someone who is comparing options, validating fit, or moving closer to a purchase decision.

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Entity Consistency

The degree to which a site describes the same service, brand, or concept in stable, non-contradictory ways across its content.

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Evidence Hierarchy

The order in which proof is presented, usually starting with method and context before stronger claims or outcomes are introduced.

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Generative Engine Optimisation

A strategy for improving how brands are discovered, interpreted, and cited in AI-generated answers by combining technical SEO, entity clarity, and conversion-focused content architecture.

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Generative Search Optimisation

Optimising content and entities for generative search experiences that blend information from many sources, focusing on clarity, authority and safe reusability.

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GEO Audit

A structured assessment of how a brand is discovered, represented, and cited across AI-powered search engines, covering content architecture, entity clarity, citation readiness, and measurement.

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GEO Measurement

The practice of tracking and quantifying a brand's presence in AI-generated answers over time, including citation share, prompt coverage, and representation accuracy.

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GEO vs SEO

The distinction between Generative Engine Optimisation (optimising for AI-generated answers) and traditional Search Engine Optimisation (optimising for ranked links). GEO focuses on citation quality and entity clarity; SEO focuses on rankings and organic clicks.

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Intent Signal

A behavioural signal indicating that a user is researching and comparing options, inferred from search or browsing patterns.

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LLM Visibility

How prominently a brand or service is represented in the outputs of large language models - a measure distinct from traditional rankings, focused on citation frequency and accuracy.

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Message Drift

The gradual loss of consistency in positioning or service language as new pages and updates introduce alternate framing over time.

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Micro-Moment

A short, intent-rich moment when a user turns to a device for quick information, like 'marketing agency near me now'.

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Perplexity AI

An AI-powered answer engine that synthesises information from multiple sources to respond to user queries in natural language, increasingly used for research and commercial discovery.

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Prompt Coverage

The proportion of commercially relevant prompts for which a brand is cited or mentioned in AI-generated answers, used to benchmark GEO performance.

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Prompt Intent

The underlying goal behind an AI or search prompt, such as research, comparison, implementation, or purchase decision support.

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Prompt Mapping

The process of matching commercially important prompt classes to the pages, sections, and supporting assets best suited to answer them.

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Representation Quality

How accurately and consistently a business, service, or topic is described across pages and AI-assisted search outputs.

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Retrieval-Augmented Generation

A method where an AI system retrieves relevant external documents before generating a response, improving factual grounding and citation quality.

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Semantic Search

Search technology that interprets meaning and context behind queries and content, rather than matching keywords literally.

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Source Confidence

The level of trust an AI system or user can place in a source based on clarity, consistency, proof, and technical reliability.

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Structured Answer Content

Content formatted specifically to be parsed and reused by AI engines - using clear headings, bounded claims, supporting evidence, and consistent terminology.

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Terminology Governance

A control system for approved terms, alternates, and banned ambiguity so a site describes services consistently across pages and teams.

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Vector Search

A search approach that uses embeddings to find semantically similar content instead of relying only on exact keyword matching.

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Voice Search Optimisation

Adapting content to match natural, spoken queries typically used on mobile or smart devices.

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