SEO Dictionary

The Complete SEO, AI SEO, AEO & GEO Dictionary

Search marketing now includes traditional SEO, local visibility, answer engines and generative search. This dictionary explains the essential terminology in plain English. Every entry includes a meaning, a practical use and an example, so readers can understand both the concept and how it applies to real work.

  • Plain-English meanings
  • Practical uses
  • Clear examples

Alphabetical Dictionary

Search by term or jump directly to a letter. Every definition remains visible and includes a practical application and example.

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3

301 Redirect

Meaning

A permanent server-side redirect that sends users and crawlers from an old URL to a new one.

How it is used

Use it when a page has permanently moved so most link equity and traffic reach the replacement.

Example

/old-seo-guide redirects to /seo-guide with HTTP status 301.

A

AI Overview

Meaning

Google’s AI-generated search summary that may combine information and links from multiple web sources.

How it is used

Make pages indexable, specific, well sourced, and easy to navigate; no special AI schema is required.

Example

A comparison guide may be cited as a supporting source in an AI Overview.

AI SEO

Meaning

An industry term for improving visibility in AI-assisted search while maintaining sound SEO fundamentals.

How it is used

Strengthen crawlability, entities, evidence, content clarity, and brand consistency across the web.

Example

Add author credentials, original data, and concise answer blocks to a research article.

Alt Text

Meaning

A written description of an image used by screen readers and, when relevant, search systems.

How it is used

Describe the image’s purpose accurately; include a keyword only when it fits naturally.

Example

“SEO specialist reviewing a Google Search Console performance report.”

Anchor Text

Meaning

The visible, clickable words in a hyperlink.

How it is used

Use descriptive wording that tells readers and crawlers what the destination page covers.

Example

Link “local SEO services” to the local SEO service page.

Answer Engine Optimization (AEO)

Meaning

The practice of formatting trustworthy content so answer systems can understand and quote it directly.

How it is used

Lead with a concise answer, then add evidence, context, steps, and clear headings.

Example

Answer “How long does SEO take?” in two sentences before explaining the variables.

B

Backlink

Meaning

A link to your website from another website.

How it is used

Earn relevant editorial links through useful resources, expertise, partnerships, and digital PR.

Example

A trade association links to your original industry benchmark report.

C

Canonical Tag

Meaning

An HTML link element that identifies the preferred URL among duplicate or very similar pages.

How it is used

Use a self-referencing canonical on indexable pages and point duplicates to the preferred version.

Example

A tracking-parameter URL canonicals to the clean product URL.

Citation

Meaning

A mention of a brand, business, source, or document, with or without a clickable link.

How it is used

Keep business facts consistent and make claims traceable to authoritative sources.

Example

A local directory lists the same company name, address, and phone number as the website.

Click Depth

Meaning

The number of internal clicks needed to reach a page from an important starting point.

How it is used

Keep valuable pages close to the main navigation or to relevant high-level pages.

Example

An important service page is reachable within two clicks of the homepage.

Click-Through Rate (CTR)

Meaning

The percentage of impressions that produce a click.

How it is used

Improve relevance and appeal in titles, descriptions, rich results, and calls to action.

Example

200 clicks from 5,000 impressions equals a 4% CTR.

Content Cluster

Meaning

A group of related pages connected to a broad pillar page through purposeful internal links.

How it is used

Use clusters to cover a topic comprehensively and guide visitors to progressively deeper information.

Example

An SEO pillar links to guides on technical SEO, local SEO, backlinks, and content.

Core Web Vitals

Meaning

Google page-experience metrics focused on loading, interaction responsiveness, and visual stability.

How it is used

Monitor LCP, INP, and CLS using field data and fix templates or assets causing poor experiences.

Example

Compress the hero image to improve Largest Contentful Paint.

Crawl Budget

Meaning

The amount of crawling a search engine is willing and able to perform on a site over time.

How it is used

Prioritize it mainly on large sites by controlling duplicate URLs, traps, errors, and server performance.

Example

Block endless faceted URL combinations that create no unique search value.

Crawler

Meaning

Automated software that discovers and requests web pages and other resources.

How it is used

Make important pages reachable through crawlable links and provide stable server responses.

Example

Googlebot follows an internal link from the homepage to a service page.

E

E-E-A-T

Meaning

Experience, Expertise, Authoritativeness, and Trust, a framework used to assess content quality signals.

How it is used

Show first-hand knowledge, qualified authorship, transparent sourcing, accurate claims, and accountable ownership.

Example

A tax guide names a credentialed reviewer and cites current government guidance.

Entity

Meaning

A distinct person, place, organization, product, or concept that systems can identify and connect to attributes.

How it is used

Use consistent names, factual descriptions, structured data, and relevant relationships.

Example

Connect the company, founder, service area, and official profiles consistently.

F

Featured Snippet

Meaning

A highlighted answer extracted from a webpage and shown prominently in search results.

How it is used

Place a direct, complete answer near a relevant question and support it with useful detail.

Example

A 45-word definition appears above standard organic results.

G

Generative Engine Optimization (GEO)

Meaning

The practice of improving the chance that generative search and AI answer systems will understand, select, and cite a source.

How it is used

Publish original, verifiable, entity-rich content with clear passages and strong conventional SEO.

Example

A statistics page defines its methodology and cites the underlying dataset.

Google Business Profile (GBP)

Meaning

A free Google listing that represents an eligible local business in Search and Maps.

How it is used

Maintain accurate categories, services, hours, photos, reviews, and location details.

Example

A carpet cleaner updates holiday hours and adds recent job photos.

H

Hreflang

Meaning

An annotation that connects alternate language or regional versions of equivalent pages.

How it is used

Each version should reference itself and all alternates with valid, reciprocal language codes.

Example

English, Spanish, and French pages use hreflang values en, es, and fr.

I

Indexing

Meaning

The process by which a search engine analyzes eligible content and may add it to its searchable index.

How it is used

Allow crawling, remove accidental noindex directives, use canonical signals, and provide useful unique content.

Example

Search Console reports that a submitted service page is indexed.

Internal Link

Meaning

A hyperlink from one page to another page on the same website.

How it is used

Use it to support discovery, navigation, context, and distribution of internal authority.

Example

A blog about air ducts links to the air duct cleaning service page.

J

JSON-LD

Meaning

A JavaScript-based format commonly used to add structured data without changing visible page text.

How it is used

Add valid properties that match the page’s visible content and supported schema type.

Example

Insert LocalBusiness JSON-LD with the same phone number shown on the contact page.

K

Keyword

Meaning

A word or phrase used to represent the subject and search demand a page intends to satisfy.

How it is used

Choose keywords by intent and relevance, then write naturally around the topic and related questions.

Example

“carpet cleaning in Oxnard, CA” is a local commercial keyword.

Knowledge Graph

Meaning

A structured network of entities, attributes, and relationships used to understand real-world information.

How it is used

Make entity facts consistent and corroborated across your site and reputable external sources.

Example

A company’s official site and profiles consistently identify its founder and location.

L

Large Language Model (LLM)

Meaning

An AI model trained to process and generate language based on patterns learned from large datasets.

How it is used

Write precise, well-structured, evidence-backed content that can be retrieved and interpreted correctly.

Example

An assistant summarizes a comparison page and links to it as a source.

llms.txt

Meaning

A proposed, non-standard text file intended to help AI systems locate selected website resources.

How it is used

Treat it as optional documentation, not a substitute for crawling, indexing, sitemaps, or internal links.

Example

/llms.txt lists key documentation URLs, while the same pages remain normally crawlable.

Local SEO

Meaning

The practice of improving visibility for searches connected to a geographic area or nearby business.

How it is used

Optimize the website, Google Business Profile, reviews, citations, and locally relevant service content.

Example

A plumber targets “emergency plumber in Bristol” and maintains accurate local listings.

Long-Tail Keyword

Meaning

A specific, usually lower-volume query that expresses a narrow need or detailed intent.

How it is used

Use it for focused pages or sections that answer a real, distinct question.

Example

“How often should pet owners professionally clean carpets?”

M

Meta Description

Meaning

A short HTML summary that search engines may use beneath a page title in results.

How it is used

Write a unique, accurate benefit-focused description that supports clicks without keyword stuffing.

Example

“Understand 50 SEO, AEO and GEO terms with clear meanings, uses and practical examples.”

Meta Title

Meaning

The HTML title element that names a page and is often used as its search-result headline.

How it is used

Keep it specific, readable, distinct, and aligned with the page’s primary topic.

Example

“SEO, AEO & GEO Dictionary: 50 Terms Explained.”

N

NAP

Meaning

The business Name, Address, and Phone number used across a local company’s online presence.

How it is used

Keep the core details accurate and consistent on the website, business profiles, and major directories.

Example

The footer and Google Business Profile show the same local phone number.

Natural Language Processing (NLP)

Meaning

Technology that helps computers analyze, interpret, and generate human language.

How it is used

Write clearly, disambiguate entities, and use natural terminology instead of repetitive keyword patterns.

Example

A page explains “floor sanding” and related concepts such as refinishing and sealing.

Noindex

Meaning

A robots directive requesting that a search engine not include a page in its index.

How it is used

Use it for pages that should remain accessible but should not appear in search, then allow crawling so the directive can be seen.

Example

Apply noindex to an internal search-results page.

O

On-Page SEO

Meaning

Optimizations made within a page’s content and HTML to improve relevance, usability, and search presentation.

How it is used

Align the title, headings, copy, links, images, and metadata with the visitor’s intent.

Example

A service page uses one clear H1, useful FAQs, and relevant internal links.

Organic Traffic

Meaning

Unpaid visits that arrive through search-engine results.

How it is used

Measure landing pages, queries, conversions, and quality, not visits alone.

Example

A guide receives 800 search visits and generates 24 consultation enquiries.

Q

Query Fan-Out

Meaning

A technique in which an AI search system issues multiple related searches to build a broader response.

How it is used

Cover important subtopics clearly and create useful supporting pages connected through internal links.

Example

A complex travel question triggers searches for weather, transport, costs, and neighborhoods.

R

Retrieval-Augmented Generation (RAG)

Meaning

A method that retrieves external information and supplies it to a generative model before it answers.

How it is used

Make source passages accessible, specific, current, and easy to attribute.

Example

A support assistant retrieves a current policy page before composing its response.

Robots.txt

Meaning

A site-level file that controls which URL paths compliant crawlers may request.

How it is used

Use it to manage crawling, not to remove an already indexed page from search.

Example

Disallow crawling of parameter-heavy internal search URLs.

S

Schema Markup

Meaning

Machine-readable vocabulary, commonly from Schema.org, that describes page entities and content.

How it is used

Use the most specific valid type and ensure markup agrees with visible information.

Example

Add BreadcrumbList markup to a visible breadcrumb trail.

Search Intent

Meaning

The underlying goal a person wants to accomplish with a query.

How it is used

Match the content format and depth to informational, navigational, commercial, local, or transactional needs.

Example

“SEO pricing” needs clear cost guidance, not only a general definition of SEO.

Semantic SEO

Meaning

An approach that builds meaning through entities, relationships, context, and comprehensive topic coverage.

How it is used

Explain related concepts naturally and connect them with descriptive internal links.

Example

A carpet guide covers fibers, soil types, cleaning methods, drying, and maintenance.

SERP

Meaning

The search engine results page shown after a user submits a query.

How it is used

Review the formats, competitors, features, and intent visible on the results page before creating content.

Example

The SERP includes local results, an AI Overview, videos, and organic listings.

Sitemap

Meaning

A file, usually XML, that lists canonical URLs or specialized resources a site wants search engines to discover.

How it is used

Include indexable canonical URLs and keep last-modified dates accurate when used.

Example

/sitemap.xml lists the website’s service and location pages.

Structured Data

Meaning

Standardized machine-readable information that describes entities and page content.

How it is used

Use supported properties accurately and validate the markup; eligibility does not guarantee a rich result.

Example

Product data identifies price, availability, brand, and reviews shown on the page.

T

Topical Authority

Meaning

A practical SEO concept describing a site’s demonstrated depth, consistency, and credibility on a subject.

How it is used

Build useful coverage around a focused area and support it with expertise, evidence, and internal links.

Example

A flooring site publishes connected expert guides on sanding, finishes, repairs, and maintenance.

U

URL Slug

Meaning

The readable path segment that identifies a specific page.

How it is used

Keep it short, descriptive, lowercase, and stable.

Example

/seo-dictionary is clearer than /page?id=9472.

V

Voice Search Optimization

Meaning

The practice of making content easy to retrieve for conversational and spoken queries.

How it is used

Use natural questions, concise answers, local context, and mobile-friendly pages.

Example

Answer “Who offers same-day carpet cleaning near me?” with eligibility and service-area details.

Z

Zero-Click Search

Meaning

A search in which the user obtains enough information on the results page and does not visit another site.

How it is used

Track visibility, calls, directions, branded demand, and conversions alongside website clicks.

Example

A user reads business hours in a local result without opening the website.

Turn search terminology into stronger visibility

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