---
metadata:
  - name: generator
    content: Diplodoc Platform v5.52.0
alternate:
  - https://3y3.dev/en/syntax/term.md
  - https://3y3.dev/ru/syntax/term.md
  - href: en/syntax/term.md
    type: text/markdown
    title: Markdown version
  - href: ../llms.txt
    type: text/markdown
    title: llms.txt
updatedAt: '2026-03-16T07:40:10.000Z'
---
> **Documentation Index:** Fetch the complete configuration index at https://3y3.dev/en/llms.txt

# Definition

The syntax for definitions is:

```
[*term_key]: Explaining a term or abbreviation using definition syntax.
The term definition may include _basic_ markup.

Use of the [term](*term_key) in the text.
```

**Result**

Use of the [term](*term) in the text.

You can define terms anywhere on the page.

{% note info %}

At the moment, the use of definitions in code blocks is possible only if the code block does not have a language specified.

{% endnote %}

![Example of displaying a popup hint](../_images/terms_sample.png)

[*term]: Explaining a term or abbreviation using definition syntax.
The _term_ definition may *include* [basic markup](https://3y3.dev/en/syntax/base.md):
* lists;
* links;
* images, etc.