> For the complete documentation index, see [llms.txt](https://learn.getvectorai.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.getvectorai.com/about/glossary.md).

# Glossary

**Document** refers to a vector and its associated metadata. An example of a document: 

```
document_example = {
    "car": {
        "wheels":
            {
                "number": 4
            }
    },
    "car_image_vector_": [0.52, 0.36, 0.12]
}
```

* **Field**, as shown in the example above is the value used to access a specific document value. For example, in the example above, 'car' is a field and 'number' is a field, but 4 is not a field.
* **Value** refers to what is returned by the field. For example, "number" field refers to 4.