SEO and AEO Glossary for B2B

The SEO and AEO Glossary for B2B is a 22-term reference defining SEO, AEO, GEO, and AI search concepts B2B marketers need for organic growth in the era of AI Overviews and answer engines.

Here's the hard truth: B2B organic search just split into two disciplines, and most marketing teams are still debating whether the second one is real. Classic SEO still drives traffic from traditional organic listings. A second layer, answer engine optimization, governs how your brand gets cited inside AI-generated answers from Google AI Overviews, ChatGPT, Perplexity, Claude, and Gemini. No, SEO isn't dead. But if you only do SEO, you're invisible in the answers your buyers are already getting. Vendor shortlists are forming inside Perplexity and ChatGPT before your site ever gets a visit. That's the stake.

The Starr Conspiracy built this glossary because the citation landscape is fragmented across opinion pieces and how-to posts, and none of them owns a clean, authoritative vocabulary for the territory. We're not doing the sanitized version. Use this to align your exec team on terms, prioritize the work, and build the AEO and GEO layer on top of SEO fundamentals that still matter. The surfaces changed. The fundamentals didn't.

How to use this glossary

Read top to bottom for the full map, or jump to a category. Each entry includes related terms so you can trace the connections. If you're building this as a system, start with Answer Engine Optimization (AEO), then measure Citation Rate and Share of Voice in AI Answers. The Starr Conspiracy's perspective on the operational shift lives in our broader work on AI organic growth.

How These Terms Relate

The vocabulary works in five concentric layers. Foundations covers what classic SEO has always done: indexing, ranking, intent, and the SERP. AI Search Surfaces names the new places your brand can appear, from AI Overviews to ChatGPT citations. Optimization Disciplines covers the work itself, SEO, AEO, and GEO as peer practices that share crawlability, entity clarity, internal linking, and schema as connective tissue. Metrics and Measurement defines what to track when half your impressions never produce a click, because rankings and citations are not the same thing. Failure Modes names the risks executives need language for. Read it as one system, not three disciplines bolted together.

Foundations

Use these to audit your baseline SEO system before you touch AEO or GEO.

Search Engine Optimization (SEO)

Search Engine Optimization is the discipline of engineering a website's structure, content, and authority to earn ranked visibility in traditional search results for queries that map to B2B buying intent.

Related terms: Search Intent, SERP, Topical Authority, Schema Markup

Search Intent

Search Intent is the underlying goal behind a query, classified as informational, navigational, commercial, or transactional, used to match content to where a buying committee sits in vendor research.

Related terms: SERP, Featured Snippet, Answer Engine

SERP (Search Engine Results Page)

A SERP is the page a search engine returns for a query, containing organic links, paid ads, featured snippets, AI Overviews, and rich results that compete for attention before a single click happens.

Related terms: Featured Snippet, AI Overviews, Zero-Click Search

Featured Snippet

A Featured Snippet is a Google result that extracts a direct answer from a ranking page and displays it at the top of the SERP, historically the precursor to today's AI Overviews citation mechanics.

Related terms: AI Overviews, Answer Engine Citation, Schema Markup

Entity

An Entity is a person, company, product, or concept search engines recognize as a discrete node in their knowledge graph, used to associate a brand with the category and analyst narratives it claims authority on.

Related terms: Topical Authority, Brand Mention, Entity Association

AI Search Surfaces

Use these to name where your brand can show up when the buyer never reaches your site.

AI Overviews

AI Overviews are Google's generative summaries that appear above traditional organic results on eligible queries, synthesizing cited sources to answer directly without requiring a click. AI Overview optimization is the work of becoming one of those sources.

Related terms: Answer Engine, Answer Engine Citation, Retrieval-Augmented Generation (RAG)

Answer Engine

An Answer Engine is any AI system, including ChatGPT, Perplexity, Claude, Gemini, and Google AI Overviews, that responds to a query with a synthesized natural-language answer rather than a list of links.

Related terms: Answer Engine Optimization (AEO), Answer Engine Citation, Large Language Model (LLM)

Large Language Model (LLM)

A Large Language Model is a neural network trained on massive text corpora that generates the natural-language responses powering answer engines, with retrieval pulling live web content into its outputs at query time.

Related terms: Retrieval-Augmented Generation (RAG), Answer Engine, Entity

Retrieval-Augmented Generation (RAG)

Retrieval-Augmented Generation is the architecture answer engines use to ground LLM outputs in live or indexed web content, retrieving relevant passages at query time and citing them in the answer the buyer reads.

Related terms: Large Language Model (LLM), Answer Engine Citation, Schema Markup

Answer Engine Citation

An Answer Engine Citation is a named source reference inside a generative AI response, functioning as the AEO equivalent of an organic ranking and the primary unit of visibility for B2B vendor discovery.

Related terms: Citation Rate, Share of Voice in AI Answers, AI-Assisted Vendor Discovery

Optimization Disciplines

Use these to define the work itself. Rankings versus citations, traffic versus visibility, click capture versus influence.

Answer Engine Optimization (AEO)

Answer Engine Optimization is the discipline of structuring content so AI answer engines extract and cite it when responding to buying-committee queries. The Starr Conspiracy treats AEO as a peer discipline to SEO, not a replacement, because vendor shortlists form before your site ever gets a visit.

Related terms: Generative Engine Optimization (GEO), Answer Engine Citation, Schema Markup, Citation Rate

Generative Engine Optimization (GEO)

Generative Engine Optimization is the practice of influencing how generative AI systems represent a brand inside synthesized outputs, covering citation likelihood, sentiment, and entity association across ChatGPT, Perplexity, Gemini, and Claude.

Related terms: Answer Engine Optimization (AEO), Entity Association, Brand Mention, Share of Voice in AI Answers

Answer Engine Optimization vs SEO

Answer Engine Optimization vs SEO is the comparison between optimizing for citation inside AI-generated answers and optimizing for ranked links in traditional results, where both disciplines now coexist as required layers of B2B organic strategy.

Related terms: Answer Engine Optimization (AEO), Search Engine Optimization (SEO), Citation Rate

Schema Markup

Schema Markup is structured data added to a webpage in JSON-LD format that labels entities, definitions, articles, and products for machine readability, increasing extraction likelihood across both classic search and answer engines.

Related terms: Entity, Retrieval-Augmented Generation (RAG), Topical Authority

Topical Authority

Topical Authority is the cumulative signal that a domain is a credible source on a defined subject area, built through depth of coverage, internal linking, and entity associations LLMs treat as a citation-worthiness heuristic.

Related terms: Entity, Entity Association, Schema Markup

Metrics and Measurement

Use these to track what matters when impressions stop equaling clicks.

Share of Voice in AI Answers

Share of Voice in AI Answers is the percentage of relevant queries in a defined topic set where a brand appears as a cited source inside generative answers. The Starr Conspiracy treats it as the leading indicator of AEO performance.

Related terms: Citation Rate, Answer Engine Citation, Query Set

Citation Rate

Citation Rate is the frequency with which a specific URL or domain is named as a source inside answer engine responses across a tracked query set, calculated as citations divided by total queries monitored.

Related terms: Share of Voice in AI Answers, Query Set, Answer Engine Citation

Query Set

A Query Set is a curated list of buying-stage queries a B2B team monitors across answer engines to measure citation performance, the operational unit underneath both Citation Rate and Share of Voice in AI Answers.

Related terms: Citation Rate, Share of Voice in AI Answers, Search Intent

Zero-Click Search

Zero-Click Search is a query that resolves on the SERP without the user clicking through to any website, driven by featured snippets, knowledge panels, and AI Overviews that satisfy buyer questions on-page.

Related terms: Zero-Click Erosion, AI Overviews, Organic Click Deflection

Dark Funnel Visibility

Dark Funnel Visibility is the measurement challenge of tracking brand exposure in untracked channels including answer engines, private communities, and peer conversations where B2B buyers research vendors before any attributable site visit. The Starr Conspiracy treats this as the defining attribution problem of the AI search era.

Related terms: AI-Assisted Vendor Discovery, Brand Mention, Share of Voice in AI Answers

Brand Mention

A Brand Mention is any named reference to a company inside answer engine outputs, third-party content, or community discussion, counted whether or not it includes a link, and treated by LLMs as an entity-association signal.

Related terms: Entity Association, Answer Engine Citation, Dark Funnel Visibility

Entity Association

Entity Association is the strength of connection a search or answer engine perceives between a brand entity and a topic, category, or problem, built through consistent co-occurrence across authoritative sources.

Related terms: Entity, Topical Authority, Brand Mention

Failure Modes and Risks

Use these to give executives language for what can go wrong, and why doing nothing is the riskiest move.

Zero-Click Erosion

Zero-Click Erosion is the progressive decline in organic click-through rates as AI Overviews and SERP features satisfy more queries on-page, leaving ranked URLs with impressions but no traffic to the business.

Related terms: Zero-Click Search, Organic Click Deflection, AI Cannibalization

AI Cannibalization

AI Cannibalization is the scenario where an answer engine summarizes a source page so completely that the user has no reason to click, transferring the value of the content from the publisher to the engine.

Related terms: Zero-Click Erosion, Answer Engine Citation, Organic Click Deflection

Organic Click Deflection

Organic Click Deflection is the redirection of clicks away from traditional organic results toward AI answers, related questions, and SERP features, forcing B2B marketers to optimize for citation and brand mention, not click capture alone.

Related terms: Zero-Click Search, AI Cannibalization, Answer Engine Citation

AI-Assisted Vendor Discovery

AI-Assisted Vendor Discovery is the behavior of B2B buyers using answer engines to identify, compare, and shortlist vendors before visiting any vendor website, making citation presence the new top of funnel.

Related terms: Dark Funnel Visibility, Answer Engine Citation, Share of Voice in AI Answers

SEO is not dying. It is being joined by AEO and GEO as required layers of B2B organic growth, and the teams that win the next cycle will be the ones whose vocabulary is precise enough to build an actual system instead of running another experiment. The Starr Conspiracy doesn't sell AI experiments. We build marketing systems that actually work, and shared language is where that starts.

Your buyers are already getting answers without clicking. Act accordingly. Start with Answer Engine Optimization (AEO), then track Citation Rate and Share of Voice in AI Answers. Align your team on the terms, then build the AEO and GEO layer on top of the SEO fundamentals you already own.