> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# RegExpDictionaryDescription Object (IRegExpDictionaryDescription Interface)

This object provides access to a [regular-expression-based dictionary](/fine-reader/engine/guided-tour/advanced-techniques/working-with-dictionaries#regular). The IRegExpDictionaryDescription interface is a child object of the [IDictionaryDescription](/fine-reader/engine/api-reference/language-related-objects/dictionarydescription) interface and inherits all its properties.

## Methods

| Name                                                                                                             | Description                                                                                                                                                                                                                             |
| ---------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [SetText](/fine-reader/engine/api-reference/language-related-objects/regexpdictionarydescription/settext-method) | Sets a regular expression to which the dictionary words must conform. See [Working with ABBYY FineReader Engine Regular Expressions](/fine-reader/engine/guided-tour/advanced-techniques/working-with-regular-expressions) for details. |

## Related objects

<img src="https://mintcdn.com/abbyy/i-EfCQVmseNiPQcp/images/fine-reader/engine/regexpdictionarydescription.gif?s=653bbb926ffb7fe13243570558f6d427" alt="RegExpDictionaryDescription" width="352" height="111" data-path="images/fine-reader/engine/regexpdictionarydescription.gif" />[](/fine-reader/engine/api-reference/language-related-objects/textlanguage#prohibitingdictionaries)[](/fine-reader/engine/api-reference/language-related-objects/baselanguage#dictionarydescriptions)[](/fine-reader/engine/api-reference/language-related-objects/baselanguage)[](/fine-reader/engine/api-reference/language-related-objects/textlanguage)[](/fine-reader/engine/api-reference/language-related-objects/dictionarydescriptions)[](/fine-reader/engine/visual-components-reference/supplementary-objects/spellwordcollection/element-property)[](/fine-reader/engine/api-reference/language-related-objects/dictionarydescription)

[Object Diagram](/fine-reader/engine/api-reference/object-diagram)

## Output parameter

This object is the output parameter of the [Item](/fine-reader/engine/visual-components-reference/supplementary-objects/spellwordcollection/item-method), [AddNew](/fine-reader/engine/api-reference/language-related-objects/dictionarydescriptions/addnew-method) methods of the [DictionaryDescriptions](/fine-reader/engine/api-reference/language-related-objects/dictionarydescriptions) object.

## See also

[Working with ABBYY FineReader Engine Regular Expressions](/fine-reader/engine/guided-tour/advanced-techniques/working-with-regular-expressions)

[Working with Dictionaries](/fine-reader/engine/guided-tour/advanced-techniques/working-with-dictionaries)

[DictionaryDescription](/fine-reader/engine/api-reference/language-related-objects/dictionarydescription)

[DictionaryDescriptions](/fine-reader/engine/api-reference/language-related-objects/dictionarydescriptions)

[Working with Properties](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties)