AI, SEO, automation, analytics, and digital marketing come with a ridiculous number of acronyms. This glossary is Growth Gary’s plain-English guide to the terms that actually matter.
Use it to quickly understand a marketing term, learn how it fits into the larger digital ecosystem, or jump into one of my deeper guides when you’re ready for more than the definition.
I’ve intentionally kept the definitions simple. You shouldn’t need another glossary to understand the glossary.
Looking for something specific? Browse the glossary below or jump to a topic:
AI & AI Search | SEO | Content | Marketing | Automation | Analytics | Websites & Ecommerce
Growth Gary Marketing Glossary
| Term | What It Means | Learn More |
|---|---|---|
| A/B Testing | Comparing two versions of a page, message, or experience to determine which performs better against a defined goal. | What Is CRO? |
| AEO (Answer Engine Optimization) | Optimizing content so answer engines and AI-powered search experiences can understand, retrieve, and use it when answering questions. | What Is AEO? |
| AI Agent | An AI-powered system capable of reasoning about a goal and taking actions using tools, data, or other systems. | What Are AI Agents? |
| AI Automation | Using artificial intelligence within automated processes so workflows can interpret information, generate outputs, make decisions, or adapt to inputs. | What Is AI Automation? |
| AI Citation | A reference, source, link, or attribution included by an AI system when generating an answer. | What Are AI Citations? |
| AI Citation Tool | Software used to monitor, analyze, or improve how brands and websites are cited by AI search and answer platforms. | Best AI Citation Tools |
| AI Content | Written, visual, audio, or video content created or substantially assisted by artificial intelligence. | What Is AI Writing? |
| AI Design | The use of artificial intelligence to generate, modify, enhance, or assist with visual design work. | What Is AI Design? |
| AI Email Marketing | The use of AI to improve email creation, personalization, segmentation, optimization, analysis, and automation. | What Is AI Email Marketing? |
| AI Marketing | The use of artificial intelligence to support marketing research, content, targeting, personalization, automation, analytics, and decision-making. | What Is AI Marketing? |
| AI Marketing Tool | Software that applies AI to marketing tasks such as content creation, analysis, research, optimization, personalization, or automation. | Best AI Marketing Tools |
| AI Research | Using AI systems to find, organize, analyze, compare, summarize, or synthesize information during the research process. | What Is AI Research? |
| AI Search | Search experiences that use AI to interpret questions, retrieve information, synthesize sources, and often generate direct answers. | What Is AI Search? |
| AI Search Tool | A search or research system that uses generative AI to help users find, synthesize, or understand information. | What Are AI Search Tools? |
| AI Video | Video created, edited, enhanced, translated, or otherwise produced with the assistance of artificial intelligence. | What Is AI Video? |
| AI Visibility | How often and how prominently a brand, website, product, or entity appears within AI-generated search answers and recommendations. | What Is AI Visibility? |
| AI Visibility Tool | Software that monitors brand mentions, citations, prompts, competitors, and visibility across AI search platforms. | Best AI Visibility Tools |
| AI Writing | Using generative AI to assist with brainstorming, drafting, editing, rewriting, researching, or optimizing written content. | What Is AI Writing? |
| Automation | Using technology to complete repeatable tasks or processes with limited manual intervention. | What Is Workflow Automation? |
| Backlink | A link from one website to another. Search engines can use backlinks as signals for discovering pages and evaluating their relevance and authority. | What Is Traditional SEO? |
| Bounce Rate | An analytics metric describing sessions in which users don’t meet the platform’s criteria for engagement. Its exact definition depends on the analytics system being used. | What Is Marketing Analytics? |
| Call to Action (CTA) | A prompt encouraging a user to take a specific next step, such as buying, subscribing, requesting a demo, or downloading something. | What Is CRO? |
| Canonical Tag | HTML that indicates the preferred version of a page when multiple URLs contain the same or very similar content. | Technical SEO |
| Chatbot | Software designed to interact conversationally with users, increasingly using generative AI rather than only predefined responses. | What Are AI Agents? |
| Content Marketing | Creating and distributing useful content to attract, educate, engage, and ultimately influence a defined audience. | What Is Content Marketing? |
| Content Optimization | Improving content so it better satisfies users, search intent, search engines, AI systems, or business objectives. | Best Content Marketing Tools |
| Conversion | A desired action completed by a visitor, such as making a purchase, submitting a form, registering, or subscribing. | What Is CRO? |
| Conversion Rate | The percentage of users or sessions that complete a defined conversion action. | What Is CRO? |
| Conversion Rate Optimization (CRO) | The systematic process of improving experiences to increase the percentage of visitors who complete desired actions. | What Is CRO? |
| Core Web Vitals | Google’s user-experience metrics focused on loading performance, interaction responsiveness, and visual stability. | Technical SEO |
| CRM (Customer Relationship Management) | Software and processes used to organize customer and prospect information, interactions, relationships, and sales activity. | Best CRM Software for Marketing |
| CTR (Click-Through Rate) | The percentage of impressions that result in a click. | What Is Marketing Analytics? |
| Ecommerce | The buying and selling of products or services through digital channels, particularly websites and online marketplaces. | What Is Ecommerce? |
| EEAT | Google’s shorthand for experience, expertise, authoritativeness, and trustworthiness—concepts used by its quality systems and evaluators when assessing content quality. | What Is Traditional SEO? |
| Email Marketing | Using email to communicate with prospects and customers for education, promotion, conversion, retention, or relationship building. | What Is Email Marketing? |
| Entity | A distinct person, place, organization, product, concept, or other identifiable thing that information systems can recognize and relate to other entities. | What Is AI Search? |
| Generative AI | Artificial intelligence designed to generate new outputs such as text, images, audio, video, or code based on instructions and context. | What Is AI Marketing? |
| GEO (Generative Engine Optimization) | The practice of improving content and digital presence to increase visibility, inclusion, and citations within generative AI answers. | What Is GEO? |
| Hosting | The infrastructure that stores a website’s files and makes the website available to users over the internet. | What Is Website Hosting? |
| Impression | An instance in which content, an ad, listing, or search result is displayed to a user according to a platform’s measurement rules. | What Is Marketing Analytics? |
| Indexing | The process through which a search engine processes eligible discovered pages and may add them to its searchable index. | Technical SEO |
| Internal Link | A hyperlink from one page of a website to another page on the same website. | Technical SEO |
| Keyword | A word or phrase associated with what users search for and the subject a page is intended to address. | What Is Traditional SEO? |
| Landing Page | A page designed around a specific audience, campaign, search intent, offer, or conversion objective. | What Is CRO? |
| Large Language Model (LLM) | An AI model trained on large amounts of language data to understand and generate text and perform language-related tasks. | What Is AI Search? |
| Lead Generation | The process of attracting potential customers and capturing information that allows a business to continue the relationship. | What Is Content Marketing? |
| Marketing Analytics | The measurement and analysis of marketing data to understand performance and support better marketing decisions. | What Is Marketing Analytics? |
| Marketing Automation | Using software to automate marketing activities, workflows, communications, segmentation, and other repeatable processes. | What Is Marketing Automation? |
| Marketing Funnel | A model describing stages people move through from awareness and consideration toward conversion and retention. | What Is AI Marketing? |
| Marketing Stack | The collection of technologies a business uses to execute, automate, analyze, and manage its marketing. | Gary’s Recommended Marketing Stack |
| Meta Description | HTML metadata that summarizes a webpage and may be used by search engines when generating search-result snippets. | What Is Traditional SEO? |
| On-Page SEO | Optimizing the content and HTML elements of individual webpages to improve relevance, usability, and organic-search performance. | What Is Traditional SEO? |
| Organic Search | Unpaid search-engine visibility and traffic generated through search results rather than advertising placements. | What Is Traditional SEO? |
| Paid Media | Marketing placements a business pays to distribute, including paid search, social advertising, display advertising, and sponsored media. | What Is Paid Media? |
| Prompt | Instructions, questions, context, examples, or other input provided to an AI system to guide its output. | What Is AI Writing? |
| RAG (Retrieval-Augmented Generation) | An AI architecture that retrieves relevant external information and supplies it to a generative model as context for producing a response. | What Is AI Search? |
| Rank Tracking | Monitoring where webpages appear in organic search results for selected queries over time. | Best SEO Tools for Small Businesses |
| Schema Markup | Structured data added to webpages to help machines understand entities, content types, and relationships more explicitly. | Technical SEO |
| Search Intent | The underlying objective a person is trying to accomplish with a search query. | What Is Traditional SEO? |
| SEO (Search Engine Optimization) | Improving a website and its content to increase relevant organic visibility in search engines. | What Is Traditional SEO? |
| SERP (Search Engine Results Page) | The page a search engine displays in response to a user’s query. | What Is Traditional SEO? |
| Social Media Marketing | Using social platforms to reach audiences, distribute content, build relationships, generate demand, and support business objectives. | What Is Social Media Marketing? |
| Technical SEO | Optimizing technical elements that affect how search engines crawl, understand, index, render, and experience a website. | Technical SEO |
| Topical Authority | The perceived depth, breadth, and credibility a website demonstrates around a particular subject area through interconnected, useful content. | What Is Traditional SEO? |
| Website Hosting | The servers and supporting infrastructure used to make website content accessible on the internet. | Best Web Hosting Providers for WordPress |
| Website Speed | How quickly a website loads, responds to interaction, and becomes usable for visitors. | What Is Website Speed? |
| Workflow Automation | Using software to automatically move tasks, information, or actions through a defined business process. | What Is Workflow Automation? |
| WordPress | An open-source content management system used to build and manage websites, blogs, ecommerce stores, and other digital experiences. | What Is WordPress? |
That’s 70 core terms, which I think is about right for launch. It’s enough to feel substantial without turning the page into an encyclopedia.
AI Search Terms You Should Know
AI search has introduced several terms that are easy to lump together even though they describe different things.
The simplest way I think about them is:
| Concept | The Question It Answers |
|---|---|
| AI Search | How are people finding information through AI? |
| AI Visibility | Is my brand showing up in those answers? |
| AI Citations | Is the AI using or referencing my content as a source? |
| AEO | How can I make my information easier for answer systems to use? |
| GEO | How can I improve my presence in generative AI answers? |
| Traditional SEO | How can I improve organic search visibility? |
These disciplines increasingly overlap.
I wouldn’t treat GEO as something that replaces SEO, for example. Strong technical accessibility, useful content, recognizable entities, authoritative information, and clear site architecture can support visibility across multiple discovery systems.
The interface is changing faster than the fundamental need to publish information worth finding.
If AI search is your main interest, start with What Is AI Search? and then move into What Is AI Visibility?.
AI Automation Terms You Should Know
Another area where terminology gets messy is automation.
Three concepts in particular are related but aren’t interchangeable.
Workflow Automation
Workflow automation follows defined rules.
For example:
Form submitted → create CRM contact → notify sales → send email
The workflow has already been designed. Software executes it.
My workflow automation guide goes deeper into how these systems work.
AI Automation
AI automation introduces artificial intelligence into the process.
Instead of merely moving information from one system to another, AI might:
- Classify the information
- Summarize it
- Generate a response
- Extract important fields
- Decide which workflow should run
That’s why I treat AI automation as an evolution of automation rather than simply another name for it.
AI Agents
Agents take the idea further.
An AI agent may be given a goal and then determine which actions or tools it should use to pursue that goal.
That’s a meaningful distinction from a workflow where every step has already been explicitly defined.
You can read the full breakdown in What Are AI Agents?.
SEO Terms You Should Know
SEO terminology has accumulated over decades, but a relatively small collection of concepts explains a lot of the discipline.
At the highest level, I think about SEO through four layers:
Discovery
Can search engines find the page?
That brings in concepts such as:
- Crawling
- Internal linking
- XML sitemaps
- Robots directives
Understanding
Can search engines determine what the page and website are about?
That involves:
- Content
- Keywords
- Entities
- Schema
- Internal links
- Site architecture
Evaluation
Does the page deserve to appear prominently for the query?
This is where quality, relevance, authority, links, experience, and other signals enter the picture.
Experience
Does the page actually work well for the person who lands on it?
Website speed, usability, mobile experience, content quality, and accessibility matter here.
If you’re new to this area, start with What Is Traditional SEO? before diving into the individual terms.
Marketing Terms You Should Know
Digital marketing gets easier to understand once you stop treating every channel as an independent discipline.
A simplified customer journey might look like:
Discovery → Education → Consideration → Conversion → Retention
Different marketing disciplines influence different parts of that journey.
For example:
- SEO can create discovery.
- Content marketing can educate.
- Email marketing can nurture.
- CRO can improve conversion.
- Marketing automation can connect stages.
- Analytics can measure what’s working.
AI increasingly operates across all of them rather than existing as one isolated marketing channel.
That’s an important distinction.
AI marketing isn’t simply another box next to email marketing and content marketing. AI can become a capability used inside email, content, analytics, advertising, automation, research, and other functions.
That’s the larger idea behind my guide to AI marketing.
Why Growth Gary Has a Marketing Glossary
There are already plenty of marketing glossaries online.
I don’t need another page defining “website” as a collection of webpages available on the World Wide Web.
That’s not particularly useful.
I’m building this glossary around the terminology that shows up throughout Growth Gary and the subjects I’m actually researching and writing about:
AI + search + marketing + automation + websites.
As those areas converge, terminology gets confusing quickly.
A marketer can now reasonably encounter AEO, GEO, RAG, LLMs, AI agents, schema, entities, CRO, CRM, Core Web Vitals, workflow automation, and AI citations during the same project.
The goal of this page is to give you a reliable place to answer:
“Wait. What exactly does that mean?”
Then, if you want to understand the subject rather than just the definition, follow the link into the deeper Growth Gary guide.
How to Use This Glossary
If you’re learning digital marketing, don’t try to memorize 70 definitions.
Start with the concepts closest to the problem you’re trying to solve.
If you’re trying to get more organic traffic, start with SEO, search intent, keywords, technical SEO, internal linking, and content marketing.
If you’re trying to understand AI search, start with AI search, AI visibility, AI citations, GEO, AEO, entities, LLMs, and RAG.
If you’re trying to make a marketing operation more efficient, start with workflow automation, marketing automation, AI automation, AI agents, CRM, and marketing analytics.
And if you’re evaluating software, head over to Gary’s Recommended Marketing Stack or one of the individual tool guides.
The vocabulary isn’t the objective.
Understanding how the pieces work together is.
— Gary
FAQs About AI & Digital Marketing Terms
What is a digital marketing glossary?
A digital marketing glossary is a reference that defines common terminology used across areas such as SEO, content marketing, email, analytics, advertising, social media, conversion optimization, and marketing technology.
What are the most important AI marketing terms to know?
AI, generative AI, large language models, prompts, AI agents, AI automation, AI search, AI visibility, AI citations, AEO, and GEO are among the most useful foundational concepts for marketers working with current AI systems.
What’s the difference between SEO, AEO, and GEO?
SEO primarily focuses on organic search visibility. AEO focuses on making information useful and accessible to systems providing direct answers. GEO focuses on visibility and representation within generative AI experiences. There is substantial overlap among them rather than three completely separate disciplines.
What does LLM mean?
LLM stands for large language model. It describes a type of AI model trained on large quantities of language data that can understand and generate text and perform a wide range of language-based tasks.
What does GEO mean in marketing?
GEO stands for generative engine optimization. It generally refers to efforts to improve how a brand or its information appears within responses produced by generative AI and AI-powered search systems. See my complete guide to GEO for the deeper explanation.
What does AEO mean?
AEO stands for answer engine optimization. It focuses on making information clear, useful, structured, and accessible to systems that answer user questions directly. I’ve covered the distinction in more detail in What Is AEO?.
What is marketing automation?
Marketing automation is the use of technology to automate repeatable marketing activities and workflows. Examples include email sequences, lead nurturing, customer segmentation, campaign triggers, and CRM updates. See What Is Marketing Automation? for the full guide.
What is the difference between automation and AI agents?
Traditional automation generally executes predefined rules or workflows. AI agents can potentially interpret goals, reason about what to do next, use available tools, and take actions with greater autonomy. The distinction isn’t always clean because modern software increasingly combines both approaches.