---
title: baseSpecifier
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/nsrelativespecifier/basespecifier
---

# baseSpecifier

Sets the specifier for the base object.

## Declaration

```swift
var baseSpecifier: NSScriptObjectSpecifier? { get set }
```

## Parameters

- `baseSpecifier`: The specifier for the base object—the object to which the relative specifier is related.

## See Also

### Accessing a relative specifier

- [relativePosition](foundation/nsrelativespecifier/relativeposition-swift.property.md)