# Built-in Constants

These constants are built into the Nix language evaluator:

<dl>

{{#include @generated@/language/builtin-constants.md}}

</dl>

## Things which might be mistaken for constants

<dl>
<dt><code>__curPos</code></dt>
<dd>

This is not a constant but a [context-dependent keyword](@docroot@/language/constructs.md#keywords-__curPos)

</dd>
</dl>