The Parent's AI Vocabulary Guide: 20 Terms Explained Simply

AI conversations are full of words that sound technical but aren't that complicated once someone explains them in plain English. This guide covers the 20 terms you're most likely to encounter as a parent navigating AI with your kids. No computer science degree required. Each definition is short, practical, and written so you can explain it to your child too.

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The Basics

1. Artificial Intelligence (AI)

A computer program that can do things that normally require human intelligence, like recognizing pictures, understanding language, making recommendations, or generating text. AI isn't one thing; it's a category of technology. Siri, Netflix recommendations, ChatGPT, and the spam filter in your email are all forms of AI.

Tell your kid: "AI is a computer program that learned to do smart-seeming things by studying tons of examples."

2. Prompt

The instruction or question you type into an AI tool. Everything you write to tell AI what you want is a prompt. The quality of the prompt directly affects the quality of the response. This is the core skill in AI prompting for kids.

Tell your kid: "A prompt is what you type to tell AI what to do. Better instructions = better results."

3. Large Language Model (LLM)

The type of AI behind tools like ChatGPT, Gemini, and Claude. An LLM is a program trained on enormous amounts of text that can generate human-like writing, answer questions, and have conversations. "Large" refers to the amount of data and computing power used to train it.

Tell your kid: "An LLM is the engine inside ChatGPT. It learned from reading a huge chunk of the internet, and now it can write and talk based on patterns it found."

4. Chatbot

Any AI tool you interact with through conversation. You type (or speak) a message, and it responds. ChatGPT, Gemini, Claude, and Copilot are all chatbots. The word is simple but useful; it distinguishes conversational AI from AI that works in the background (like recommendation algorithms).

Tell your kid: "A chatbot is an AI you can talk to by typing messages back and forth."

5. Training Data

The information AI learned from. For a language model, this is typically billions of web pages, books, articles, and other text. The training data determines what AI knows, what it's biased toward, and what it gets wrong. AI can only be as good as the data it was trained on.

Tell your kid: "Training data is like AI's textbook. It learned from reading a massive library of stuff humans wrote."

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How AI Works

6. Machine Learning

A method where computers learn from examples instead of being explicitly programmed. Instead of a programmer writing rules for every situation, the computer studies thousands or millions of examples and figures out the patterns itself. Most modern AI uses machine learning.

Tell your kid: "Instead of someone telling the computer every rule, the computer looks at tons of examples and figures out the patterns on its own."

7. Neural Network

The architecture (structure) behind most modern AI. Inspired loosely by how the brain works, a neural network is layers of connected nodes that process information. Data goes in one side, passes through layers of processing, and a result comes out the other side. You don't need to understand the math. Just know that this is the structure that makes AI work.

Tell your kid: "A neural network is the way an AI's brain is organized. Information flows through layers, and each layer helps the AI understand a little bit more."

8. Algorithm

A set of rules or steps a computer follows to solve a problem or complete a task. Every AI tool runs on algorithms. The word sounds technical, but a recipe is an algorithm. A set of driving directions is an algorithm. AI algorithms are just vastly more complex.

Tell your kid: "An algorithm is a set of instructions, like a recipe. AI follows really complicated recipes to figure out what to say."

9. Generative AI

AI that creates new content: text, images, music, code, video. This is the category that includes ChatGPT, DALL-E, Midjourney, and other tools your family might use. "Generative" means it generates (creates) something new rather than just analyzing or sorting existing information.

Tell your kid: "Generative AI is AI that makes stuff. It writes stories, draws pictures, composes music. It creates new things based on what you ask for."

10. Natural Language Processing (NLP)

The area of AI focused on understanding and generating human language. It's what allows you to type a normal sentence into ChatGPT and get a normal sentence back. Without NLP, you'd have to communicate with computers in code.

Tell your kid: "NLP is what lets AI understand normal human words instead of needing special computer language."

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AI Behavior

11. Hallucination

When AI generates information that sounds correct but is actually made up. AI doesn't "know" when it's wrong. It produces text based on patterns, and sometimes those patterns lead to fake facts, invented citations, or fictional events stated as truth. This is one of the most important concepts for kids to understand. See our full guide on teaching kids to fact-check AI.

Tell your kid: "Hallucination is when AI makes something up but says it like it's definitely true. It's not lying on purpose. It just doesn't know the difference between real and made-up."

12. Bias

When AI consistently produces results that favor one group, perspective, or outcome over others. AI bias comes from training data: if the data over-represents certain viewpoints or under-represents others, the AI's outputs will reflect that imbalance.

Tell your kid: "Bias is when AI leans one way because of what it learned from. If most of the training data was about one type of person or place, AI might not know much about others."

13. Token

The basic unit AI uses to process text. A token isn't exactly a word. It's a chunk of text that might be a word, part of a word, or a punctuation mark. When people say "this AI can handle 128,000 tokens," they're describing how much text it can read and respond to in a single conversation.

Tell your kid: "A token is a small piece of text that AI uses to count and process words. One word is usually one or two tokens."

14. Context Window

The amount of text AI can "remember" during a single conversation. If the context window is 128,000 tokens, AI can reference anything you've said in the conversation up to that limit. Beyond the window, it starts forgetting earlier parts of the conversation.

Tell your kid: "The context window is AI's memory for our conversation. It can remember a lot, but not forever. If we talk for a really long time, it might forget what we said at the beginning."

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Using AI Responsibly

15. Content Filter

Software that blocks or flags inappropriate content. Most AI tools have content filters that try to prevent the generation of violent, sexual, or otherwise harmful content. They're not perfect; some inappropriate content can slip through, and some harmless content gets blocked unnecessarily.

Tell your kid: "Content filters are like safety nets. They try to stop AI from showing you stuff that's inappropriate, but they don't catch everything."

16. Deepfake

AI-generated media (usually video or audio) that makes it look or sound like a real person did or said something they didn't. Deepfakes can be harmless (fun face swaps) or harmful (fake videos of real people).

Tell your kid: "A deepfake is when AI creates a fake video or voice recording that looks and sounds real. It's important to know these exist so you don't get tricked."

17. Prompt Engineering

The skill of writing effective AI prompts to get the best possible results. It involves being specific, providing context, setting constraints, and iterating on your instructions. This is what Big Thinkers activities teach through every project.

Tell your kid: "Prompt engineering is getting really good at telling AI exactly what you want. It's the difference between 'draw a dog' and 'draw a golden retriever puppy playing in autumn leaves in a watercolor style.'"

18. Iteration

Revising and improving through repeated attempts. In AI use, iteration means reading AI's response, identifying what's missing or wrong, adjusting your prompt, and trying again. The best AI results almost never come from the first prompt.

Tell your kid: "Iteration means trying again and making it better each time. The first answer is a rough draft. The third one is usually way better."

19. AI Ethics

The field of study focused on the right and wrong ways to build and use AI. Covers questions like: Is it fair for AI to make decisions about people? Who's responsible when AI causes harm? Should AI-generated art be allowed in competitions? These are real questions without easy answers.

Tell your kid: "AI ethics is about figuring out the right way to use AI. Just because AI can do something doesn't mean it should."

20. COPPA (Children's Online Privacy Protection Act)

A U.S. law that protects the privacy of children under 13 online. It requires websites and online services (including AI tools) to get parental consent before collecting personal information from kids. This is why many AI tools technically require users to be 13 or older.

Tell your kid: "COPPA is a law that says companies can't collect personal information from kids under 13 without a parent's permission. That's why some AI tools have age limits."

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How to Use This Guide

Bookmark it. Come back whenever you encounter an AI term you're not sure about.

Share it with your kids. Not all at once (that's overwhelming). But when a term comes up naturally during an AI activity, pull up the relevant definition and talk about it.

Use it during Big Thinkers activities. Many of these terms come up naturally when you're doing hands-on AI projects. Having a shared vocabulary makes the conversations richer. Browse activities.