This iterative list of AI and SEO terms will grow and evolve as we gain more visibility into AI search.
A-B
AI Citations
- Technical definition: AI citations are explicit references and attributions provided within AI-generated content, indicating the authoritative source from which the information was derived.
- Practical example: Google’s generative search responses clearly indicate citations beneath generated summaries, linking users directly to the websites that provided the cited information.
AI Citation Score
- Technical definition: AI citation score quantifies how frequently and prominently a piece of content is referenced or cited within AI-generated search results or answers, indicating content quality, authority, and retrievability.
- Practical example: A health publication monitors their AI citation scores by tracking how often Google’s AI-generated answers cite its articles when users query topics such as “benefits of vitamin D.”
AI Hallucinations
- Technical definition: AI hallucinations occur when generative AI models produce outputs that confidently assert incorrect, misleading, or entirely fabricated information not supported by their training data or provided sources.
- Practical example: If a user asks an AI chatbot for a summary of your product’s features without proper grounding, the AI might confidently include nonexistent features or incorrect specifications, potentially misleading users.
AI Mode
- Technical definition: AI Mode is an advanced, conversational search experience within Google Search that leverages the Gemini 2.5 model to provide multimodal, AI-generated responses. It utilizes a “query fan-out” technique, breaking down complex queries into subtopics and issuing multiple searches simultaneously to synthesize comprehensive answers from diverse web sources.
- Practical example: A user asks Google AI Mode to plan a “10-day budget trip to Paris, Rome, and Barcelona.” AI Mode synthesizes information from travel guides, booking sites, and blogs to provide a concise itinerary with affordable accommodations and top attractions in each city.
AI Retrieval Patterns
- Technical definition: AI retrieval patterns are the recognized structural and semantic content formats favored by AI systems when identifying, extracting, and citing content in response to user queries.
- Practical example: Websites using clear “Q&A” structured content patterns frequently appear in Google’s AI-generated responses because these align closely with common AI retrieval patterns.
AI Search
- Technical definition: AI search refers to the use of artificial intelligence techniques, including natural language processing and machine learning, to directly interpret user queries and present concise, summarized answers instead of a traditional list of search results.
- Practical example: Google’s AI Overviews instantly summarize key points from multiple websites when a user asks, “best homeowners insurance California,” providing a concise overview instead of a traditional list of links.
AI Overviews (AIOs)
- Technical definition: AI Overviews are concise, AI-generated summaries appearing prominently in Google’s search results. They are designed to directly answer user queries by aggregating and summarizing information from multiple authoritative sources.
- Practical example: When searching “nutritional benefits of blueberries,” Google’s AI Overview compiles concise nutritional facts and health benefits from multiple trusted health and nutrition websites into a single summarized result.
Answer Engine Optimization (AEO)
- Technical definition: Answer Engine Optimization is the process of structuring and optimizing website content specifically to be retrieved, cited, and prominently featured by AI-powered answer engines (such as Google’s AI Overviews or Bing Chat), effectively shifting SEO focus from rank-based visibility to citation-based visibility.
- Practical example: A health website creates clearly defined, structured answers to common medical questions, allowing Google’s AI to directly cite these answers in search overviews for queries like “symptoms of dehydration.”
Answer Quality
- Technical definition: Answer quality assesses the accuracy, comprehensiveness, relevance, and clarity of responses generated by AI or search engines in addressing user queries, directly influencing user satisfaction and trust.
- Practical example: Google evaluates answer quality by ensuring AI-generated answers about sensitive topics, like medical conditions or financial advice, clearly reference authoritative sources and provide accurate information.
Artificial Intelligence (AI)
- Technical definition: Artificial intelligence refers to the ability of computer systems or software to perform tasks that normally require human intelligence, such as recognizing speech, making decisions, translating languages, and identifying patterns from data.
- Practical example: Google’s RankBrain uses AI to interpret search queries, particularly those that are ambiguous or have never been seen before, to deliver highly relevant search results.
C-D
Citation Dynamics
- Technical definition: Citation dynamics refers to the processes and patterns by which AI systems select, attribute, and reference authoritative content sources in their generated answers or summaries.
- Practical example: Google’s AI tends to cite authoritative health sources like the Mayo Clinic or WebMD when generating answers about medical conditions, demonstrating clear citation dynamics favoring established, structured, and reputable content.
Citation Frequency
- Technical definition: Citation frequency measures how often specific website content is cited or referenced by AI-generated search responses, serving as a key indicator of authority and retrievability.
- Practical example: A nutrition-focused website tracks how frequently their articles on vitamins and supplements are cited in Google’s AI-generated overviews, indicating the effectiveness of their content structure.
Content Mapping
- Technical definition: Content mapping involves aligning website content strategically with specific user intents and AI retrieval behaviors, ensuring each piece of content effectively targets relevant queries and topics.
- Practical example: A travel blog creates separate, clearly targeted pages for distinct queries like “best restaurants in Paris,” “Paris travel itinerary,” and “cheap hotels in Paris,” aligning each page specifically to common AI-driven search intents.
Content Chunking
- Technical definition: Content chunking involves breaking down long-form content into smaller, distinct, logically structured segments or “chunks,” making it easier for AI tools to retrieve, summarize, and reuse it in generated responses.
- Practical example: A comprehensive guide on home gardening is divided into chunks with clearly defined headings like “Soil Preparation,” “Choosing Plants,” and “Watering Techniques,” allowing Google’s AI to selectively present each chunk in response to different user queries.
Content Recall
- Technical definition: Content recall measures the extent to which relevant content is correctly and comprehensively retrieved and included in AI-generated responses. It reflects retrieval accuracy and content alignment with user intent.
- Practical example: When asking “causes of migraines,” Google’s AI achieves high content recall by effectively identifying and summarizing all major medical sources mentioning migraine triggers.
Content Reusability
- Technical definition: Content reusability refers to the intentional creation and structuring of content in modular segments, enabling AI systems to easily extract, repurpose, and present individual sections across various queries and contexts.
- Practical example: A financial advice website structures articles into clearly defined sections (“Investment Tips,” “Tax Considerations,” “Retirement Planning”), enabling Google’s AI to reuse these sections independently for related search queries.
Context Window
- Technical definition: A context window is the maximum amount of text (tokens) that a language model or AI system can analyze and respond to within a single interaction. It influences how content should be segmented for effective AI retrieval.
- Practical example: When summarizing a lengthy article using ChatGPT, the text is broken down into smaller segments within the model’s context window, enabling accurate summaries for each portion.
Dense Retrieval
- Technical definition: Dense retrieval involves retrieving content based solely on semantic meaning through vector embeddings, enabling systems to match queries with content based on contextual similarity rather than exact keyword matches.
- Practical example: A user asks, “effects of caffeine,” and Google’s dense retrieval identifies and returns articles discussing the health impacts of coffee and energy drinks, even if the word “caffeine” isn’t prominent on those pages.
E-L
Embeddings
- Technical definition: Embeddings are numerical vector representations of words, sentences, or entire documents that capture semantic meaning and context, enabling AI systems to understand and retrieve information based on relevance rather than exact keyword matches.
- Practical example: Google’s search algorithm uses embeddings to accurately interpret searches like “affordable places to eat nearby,” matching user intent even if the exact keywords aren’t explicitly present on restaurant websites.
Entity Recognition
- Technical definition: Entity recognition, also known as Named Entity Recognition (NER), is a natural language processing (NLP) technique used by AI to automatically detect, identify, and categorize specific entities such as people, organizations, locations, dates, or products within text.
- Practical example: Google uses entity recognition to instantly identify and display key facts about public figures or places when users type queries like “Barack Obama birthdate” or “Eiffel Tower height.”
Generative AI
- Technical definition: Generative AI refers to artificial intelligence systems capable of creating original content such as text, images, or responses, by learning patterns from extensive datasets.
- Practical example: ChatGPT uses generative AI to produce detailed, contextually relevant answers or summaries in response to user prompts, enabling practical applications like automated customer support or content creation.
Hybrid Retrieval
- Technical definition: Hybrid retrieval combines traditional keyword-based retrieval (sparse retrieval) with semantic meaning-based retrieval (dense retrieval using embeddings), enhancing search precision and recall by balancing literal keyword matches and contextual relevance.
- Practical example: Google’s search uses hybrid retrieval methods to effectively serve relevant content for both exact queries (“definition of quantum computing”) and context-driven queries (“how quantum computing impacts cybersecurity”).
Information Gain
- Technical definition: Information gain is a metric assessing how much new, relevant, or previously unavailable information a piece of content provides compared to existing sources. It directly influences retrieval and citation by AI-driven search systems.
- Practical example: Google’s AI prefers to cite an article on recent research developments over older general summaries, due to the higher information gain provided by new findings.
Knowledge Graph
- Technical definition: A Knowledge Graph is a structured, interconnected database used by search engines (notably Google) that systematically stores and organizes facts about entities, concepts, and relationships, facilitating precise, contextually relevant retrieval and presentation of information.
- Practical example: When searching “Leonardo da Vinci,” Google’s Knowledge Graph displays key facts, artworks, and historical context directly on the search results page.
Large Language Model (LLM)
- Technical definition: A large language model is an advanced artificial intelligence trained on vast datasets. It is capable of understanding and generating human-like text responses by identifying patterns and relationships within language data.
- Practical example: ChatGPT, an LLM developed by OpenAI, quickly generates coherent answers to user queries, such as summarizing lengthy articles, creating outlines, or explaining complex topics.
Lexical Grounding
- Technical definition: Lexical grounding involves clearly and consistently defining key terms or concepts within content, ensuring AI systems accurately interpret and relate them to relevant search queries and retrieval contexts.
- Practical example: A technical tutorial explicitly defines terms like “CPU” and “RAM” at the start. This helps AI tools accurately interpret the content and effectively include it in summaries or definitions when users query those terms.
P-R
Prompt Engineering
- Technical definition: Prompt engineering involves carefully designing and structuring input queries or instructions provided to AI systems, aiming to guide the AI toward generating accurate, contextually appropriate, and relevant outputs.
- Practical example: To generate detailed SEO keyword ideas from ChatGPT, a marketer carefully structures prompts like “List 20 high-intent keywords related to organic skincare products.”
Query Context
- Technical definition: Query context refers to the situational background, additional information, or previous user interactions considered by search engines or AI systems to accurately interpret and respond to user queries.
- Practical example: When a user asks “open restaurants,” Google’s AI automatically incorporates query context such as location, current time, and dining preferences to display relevant, currently open restaurants nearby.
Query Fan-Out
- Technical definition: Query fan-out describes the phenomenon where a single search query triggers multiple related or follow-up queries. AI-powered search platforms proactively anticipate and address these additional queries in a single response.
- Practical example: When a user searches “buying a home,” AI may proactively address related questions like “what’s a good credit score for home loans?” and “steps to buying a house,” combining multiple related queries into a comprehensive overview.
Query Refinement
- Technical definition: Query refinement refers to the automatic or guided adjustments made by AI or search engines to clarify, expand, or narrow user queries, improving the accuracy and relevance of generated results.
- Practical example: If a user searches “Tesla price,” Google may automatically refine the query by suggesting clearer alternatives like “Tesla Model 3 price,” or “Tesla stock price,” based on user intent.
Ranking Decay
- Technical definition: Ranking decay describes the gradual loss of visibility or decline in traditional organic search rankings, often due to algorithm changes, content aging, or increased emphasis on AI-driven content citations and direct answers.
- Practical example: A previously high-ranking guide on “best DSLR cameras” experiences ranking decay over time as newer, more authoritative content emerges and AI-generated summaries dominate search results.
Relevance Score
- Technical definition: Relevance score measures how accurately and effectively content aligns with the intent, context, and specific informational needs expressed in a user’s query, directly affecting visibility in search engine results.
- Practical example: Google’s algorithms assign a high relevance score to a detailed guide on “repairing a leaking faucet” when users search “fix dripping faucet,” ensuring this content appears prominently.
Retrievability
- Technical definition: Retrievability measures how effectively content is structured and optimized so AI systems can easily locate, interpret, and extract it for inclusion in search-generated answers.
- Practical example: A travel blog organizes its “Top Paris Attractions” guide into clearly labeled sections with appropriate heading tags and concise lists, improving its retrievability and thus frequently appearing in Google’s AI-generated summaries for queries like “best places to visit in Paris.”
Retrieval
- Technical definition: Retrieval in AI-driven SEO refers to the method by which artificial intelligence systems identify and select relevant, authoritative, and structurally clear content to form responses or citations in AI-generated search results.
- Practical example: When a user asks “how to reset an iPhone,” Google’s AI retrieves the most clearly structured, authoritative instructions from credible tech-support websites to form a concise answer.
Retrieval Augmented Generation (RAG)
- Technical definition: Retrieval-Augmented Generation (RAG) is a framework combining information retrieval with generative language models. Instead of solely relying on pre-trained knowledge, a RAG system first retrieves relevant documents or information from an external, verifiable source (such as a database). Then it uses this retrieved context to formulate accurate, grounded answers.
- Practical example: A customer support chatbot utilizing RAG retrieves up-to-date support articles from the company’s knowledge base to accurately answer a user’s query about resetting their account password, ensuring the response is current and reliable.
S-V
Schema Markup
- Technical definition: Schema markup is structured data vocabulary (such as JSON-LD or Microdata) that annotates and defines content elements on web pages, helping search engines and AI clearly understand content types to improve information retrieval accuracy.
- Practical example: An event website uses schema markup to specify event details such as date, time, and location, enabling Google to prominently display this structured event information directly within search results.
Search Engine Optimization (SEO)
- Technical definition: Search Engine Optimization is the practice of increasing both the quality and quantity of website traffic, as well as exposure to your brand, through organic search engine results.
Practical example: A local plumbing company optimizes its website by using relevant keywords like “emergency plumbing services,” to improve its Google ranking and attract customers who are actively searching for these services.
Semantic Clusters
- Technical definition: Semantic clusters are groups of closely related topics or keywords organized by meaning and intent rather than mere keyword similarity, facilitating better contextual retrieval and user relevance.
- Practical example: A fitness website develops semantic clusters around “weight loss,” including related content like diet plans, workout routines, and lifestyle tips, helping Google accurately retrieve relevant articles based on user intent.
Semantic Search
- Technical definition: Semantic search refers to the retrieval method where search engines interpret the intent and contextual meaning behind a user query rather than relying solely on exact keyword matches. This greatly enhances the relevance and accuracy of search results.
- Practical example: If a user searches “weather tomorrow,” semantic search enables the search engine to understand the user’s intent and automatically display tomorrow’s weather forecast based on location, without needing additional specific keywords.
SERP Dynamics
- Technical definition: SERP dynamics refers to the constantly evolving patterns, structures, and behaviors of search engine results pages influenced by AI-generated features, algorithm updates, and user interaction data.
- Practical example: Google’s introduction of AI-generated overviews changed SERP dynamics by prominently displaying concise summaries, impacting click-through rates for traditionally ranked content.
Sparse Retrieval
- Technical definition: Sparse retrieval relies strictly on exact keyword matches between the user’s query and indexed documents, typically enhanced by indexing techniques like TF-IDF or BM25.
- Practical example: Searching “Nike running shoes size 10” returns product listings specifically containing those exact keywords, thanks to sparse retrieval mechanisms employed by ecommerce sites.
Structured Content
- Technical definition: Structured content refers to clearly formatted, logically organized content utilizing distinct HTML headings, bullet points, numbered lists, and succinct summaries, optimized to facilitate easy parsing and retrieval by AI systems.
- Practical example: A cooking website formats recipes into structured sections — Ingredients, Steps, Tips — allowing Google’s AI to easily extract and display these sections directly in search results when someone queries “how to make lasagna.”
Structured Summarization
- Technical definition: Structured summarization involves using AI techniques to create concise, clearly formatted summaries derived from multiple authoritative sources, specifically designed for direct presentation in search results, like AI overviews.
- Practical example: Google’s AI compiles structured summaries of multiple reviews and specifications when a user searches “best laptops for graphic design,” providing quick access to essential details.
Structured Data
- Technical definition: Structured data refers to standardized formats for organizing and annotating web page content (such as JSON-LD or Microdata) that allow search engines to easily interpret, categorize, and clearly present information in search results.
- Practical example: A recipe website uses structured data markup to clearly label cooking time, ingredients, and nutritional information, enabling Google to display rich snippets directly in search results.
Technical SEO
- Technical definition: Technical SEO refers to optimizing website infrastructure — including indexing, site speed, mobile compatibility, structured data, and crawl efficiency — to improve visibility and ranking performance in traditional and AI-driven search results.
- Practical example: A retailer improves website loading times and implements structured data markup, resulting in higher visibility in both traditional Google search results and AI-generated product overviews.
Token
- Technical definition: A token is a unit of text, typically a word, sub-word, or character, used by LLMs to process and understand language. In large language models like ChatGPT, text is broken down into tokens for analysis and generation. The number of tokens determines how much input or output a model can handle within its context window.
- Practical example: When submitting a 1,000-word blog post to ChatGPT, the model internally breaks it down into several thousand tokens. This tokenization process enables the AI to analyze the structure and meaning of the text, generate relevant summaries, and ensure the content stays within the model’s processing limit.
Token Limits
- Technical definition: Token limits refer to the maximum number of tokens — units of text, such as words or sub-words — that an AI language model can process in a single interaction. These limits affect how long-form content must be structured or segmented to ensure effective retrieval and summarization.
- Practical example: When writing content optimized for ChatGPT, authors structure lengthy articles into shorter, clearly labeled sections to ensure each part remains within the token limit. This facilitates easier retrieval and accurate summarization by the model.
Vector Databases
- Technical definition: Vector databases are specialized data storage systems that efficiently store, index, and retrieve high-dimensional vector embeddings. These databases enable rapid similarity searches (e.g., nearest-neighbor searches) crucial for semantic search applications and AI retrieval systems, especially those leveraging dense retrieval techniques.
- Practical example: An ecommerce platform stores embeddings of all its product descriptions in a vector database, enabling customers to find relevant products through semantic searches like “comfortable shoes for running,” even when exact keywords don’t match the product descriptions.
Visibility Metrics
- Technical definition: Visibility metrics measure how prominently and frequently website content appears in search engine results, including traditional rankings, citation frequency in AI-generated answers, branded search volume, and zero-click impressions.
- Practical example: An SEO analyst tracks visibility metrics by monitoring how often their content appears in Google’s AI-generated answers, alongside traditional rankings, to comprehensively measure content performance.