> For the complete documentation index, see [llms.txt](https://malrewrite.gitbook.io/important-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://malrewrite.gitbook.io/important-docs/reference/abbreviations-and-acronyms/plural-form.md).

# Plural Form

## Information

Acronyms should be pluralized by adding an *s* to the end. Those that end with *S* should instead be pluralized with an *es*. Do not use an apostrophe before the *s* or *es*.

{% hint style="info" %}
Abbreviations often follow the same plural rules as acronyms. However, note that some abbreviations, particularly SI units, may not be pluralized with an *s*. When in doubt, Google is your friend.
{% endhint %}

### Examples

| Correct  | Incorrect |
| -------- | --------- |
| UFOs     | UFO's     |
| WMDs     | WMD's     |
| TARDISes | TARDISs   |
| 10°C     | 10°Cs     |