Free AI glossary generator Key terms, defined in plain words
Upload a PDF or a doc, paste your notes, or type a topic. Get the key terms defined in plain language. Free account, no card needed.
No sources? or .
or drop a file,
or
PDF, DOCX, TXT, MD
Half of learning a new subject is learning its words. This AI glossary generator pulls the key terms out of your notes, a PDF or any topic and defines each one in a sentence or two, with a quick example when one helps.
How to make a glossary of key terms with AI
Add your material
Upload a PDF, DOCX, TXT or MD file, paste your notes, or paste an article link. Or use Ask AI and type a topic, like "intro to statistics".
Generate the glossary
Hit Make my glossary. The AI picks the 12 to 18 most important terms and defines them, from the basic ones to the advanced.
Learn the words
Cover each definition and try to say it first. Once the terms stick, the rest of the material reads a lot faster.
Example: key terms in intro statistics
Five terms in the format the tool writes. A full glossary has 12 to 18.
- Mean
- The average: add up all the values and divide by how many there are. For 2, 4 and 9, the mean is 5.
- Median
- The middle value when the data is sorted. Unlike the mean, it isn't pulled around much by extreme values.
- Mode
- The value that shows up most often in a data set. A set can have more than one mode, or none.
- Standard deviation
- A measure of how spread out values are around the mean. A small one means most values sit close to the average.
- Outlier
- A value far away from the rest of the data, like one $2 million house on a street of $300,000 homes.
What people use it for
The start of a new course
Run the first chapter through it and learn the vocabulary before the lectures get ahead of you.
Term-heavy subjects
Biology, law, economics, medicine. Anywhere the exam expects precise definitions.
An exam review sheet
Get the key terms from your notes on one page, then turn the ones you keep forgetting into flashcards.
What you get
12 to 18 terms per run, each with a definition of one or two sentences that's precise but plain. When a concrete example makes the meaning clearer, it gets one. Terms go from foundational to advanced.
When you give it your own material, the AI is told to use only that material, so terms are defined the way your course uses them. Each run reads up to about 15,000 characters, roughly 2,500 words.
Glossary or flashcards?
A glossary is for learning what the terms mean. Flashcards are for making sure you remember them. Start here, then run the AI flashcard maker on the same notes to drill the terms that don't stick.
Frequently asked questions
Is there an AI that finds the key terms in my notes?
Yes. Paste your notes or upload a file and it pulls out the 12 to 18 most important terms and defines them.
Is this glossary generator free?
Yes, with a free lezrn account. A free account gets a few free runs every day.
Can I make a glossary from a PDF?
Yes, if the PDF has selectable text. Scanned pages don't work. For a textbook, do one chapter at a time.
Can I choose which terms it defines?
Not directly. It picks the most important ones from what you give it. To focus on certain terms, paste just the section they come from, or list them in Ask AI.
Can I copy the glossary?
Yes. Select the text on the page and paste it into your notes or a doc.
How is this different from a dictionary?
A dictionary gives every meaning of a word. Here the AI is told to use only your material, so a word like "significant" gets its statistics meaning when your notes are from a stats class.