# AEO Glossary

> Key terms and concepts for AI search visibility and answer engine optimization.

- **[Answer Engine Optimization](/glossary/answer-engine-optimization)** — The practice of optimizing content so that AI-powered search engines surface and cite it when answering user queries.
- **[AEO](/glossary/aeo)** — Abbreviation for Answer Engine Optimization — optimizing content for AI-powered search engines rather than traditional search results.
- **[E-E-A-T](/glossary/e-e-a-t)** — Experience, Expertise, Authoritativeness, and Trustworthiness — Google's framework for evaluating content quality, now critical for AI search visibility.
- **[AI Visibility](/glossary/ai-visibility)** — A measure of how often and how prominently a brand or website appears in AI-generated search results and answers.
- **[AI Search Optimization](/glossary/ai-search-optimization)** — The process of optimizing content specifically for discovery and citation by AI-powered search engines like ChatGPT, Perplexity, and Google AI Overviews.
- **[llms.txt](/glossary/llms-txt)** — A proposed standard file (similar to robots.txt) that helps AI models and LLM crawlers understand a website's content, structure, and preferred citation format.
- **[Brand Mention Tracking](/glossary/brand-mention-tracking)** — Monitoring where and how often a brand is mentioned or cited in AI-generated search responses across platforms like ChatGPT, Perplexity, and Google AI Overviews.
- **[AI Citation](/glossary/ai-citation)** — When an AI search engine references a specific source or brand in its generated response, attributing information or recommendations to that source.
- **[Prompt Research](/glossary/prompt-research)** — The process of identifying and analyzing the prompts and questions users submit to AI search engines, analogous to keyword research in traditional SEO.
- **[Dual-Serve Content](/glossary/dual-serve-content)** — Content strategically designed to perform well in both traditional search engine results and AI-generated answers simultaneously.
- **[AI Overview](/glossary/ai-overview)** — Google's AI-generated summary that appears at the top of search results, synthesizing information from multiple sources to directly answer a query.
- **[Share of Voice (AI)](/glossary/share-of-voice-ai)** — The percentage of AI-generated search responses in a given category that mention or cite a specific brand, measuring competitive visibility in AI search.
- **[Entity Density](/glossary/entity-density)** — The concentration of named entities (people, places, organizations, concepts) within a piece of content, which influences how well AI models understand and cite it.
- **[Quotability Score](/glossary/quotability-score)** — A metric measuring how likely a specific piece of content is to be directly quoted or cited by AI search engines in their generated responses.
- **[Definition Box SEO](/glossary/definition-box-seo)** — The practice of including prominent, clearly formatted definition boxes in content to increase the likelihood of being featured in AI answers and featured snippets.
- **[ChatGPT SEO](/glossary/chatgpt-seo)** — Optimization strategies specifically targeting visibility and citation within ChatGPT's responses, including both its training data and real-time browsing features.
- **[Perplexity SEO](/glossary/perplexity-seo)** — Optimization strategies targeting Perplexity AI, a search engine that provides sourced, cited answers with direct links to referenced content.
- **[Content Scoring](/glossary/content-scoring)** — Automated evaluation of content quality and optimization level using AI-powered analysis, measuring readiness for both traditional SEO and AI search citation.
- **[NLP Term Optimization](/glossary/nlp-term-optimization)** — Strategically incorporating natural language processing-identified terms and phrases into content to align with how AI models understand and categorize topics.
- **[Programmatic SEO](/glossary/programmatic-seo)** — Creating large numbers of search-optimized pages automatically using templates and structured data, targeting long-tail keywords at scale.
- **[Schema Markup](/glossary/schema-markup)** — Structured data added to web pages using Schema.org vocabulary that helps search engines and AI models understand the content's meaning and relationships.
- **[Knowledge Panel](/glossary/knowledge-panel)** — An information box that appears in Google search results displaying verified facts about entities like brands, people, and organizations, sourced from Google's Knowledge Graph.
- **[Featured Snippet](/glossary/featured-snippet)** — A highlighted answer box at the top of Google search results that directly answers a query, extracted from a web page. The precursor to AI-generated answers.
- **[Topical Authority](/glossary/topical-authority)** — The perceived expertise and comprehensiveness a website demonstrates on a specific topic, built through deep, interlinked content coverage.
- **[Content Hub](/glossary/content-hub)** — A centralized collection of interlinked content organized around a core topic, designed to build topical authority and improve search visibility.
- **[Zero-Click Search](/glossary/zero-click-search)** — A search interaction where the user's question is answered directly on the results page, eliminating the need to click through to any website.
- **[Retrieval-Augmented Generation (RAG)](/glossary/retrieval-augmented-generation)** — An AI architecture that combines large language models with real-time information retrieval from external sources, enabling up-to-date and source-grounded responses.
- **[AI Content Detection](/glossary/ai-content-detection)** — Tools and techniques used to identify whether content was generated by AI language models versus written by humans, relevant to content authenticity and E-E-A-T.
- **[Semantic SEO](/glossary/semantic-seo)** — An advanced SEO approach focused on topic meaning, context, and entity relationships rather than individual keywords, aligning content with how AI models understand language.
- **[Brand SERP](/glossary/brand-serp)** — The search engine results page that appears when someone searches for your brand name, reflecting your brand's digital reputation and authority.