--- title: "What are Dictionaries?" slug: "what-are-dictionaries-1" updated: 2025-03-12T18:25:12Z published: 2025-03-12T18:25:12Z canonical: "help.mozenda.com/what-are-dictionaries-1" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.mozenda.com/llms.txt > Use this file to discover all available pages before exploring further. # What are Dictionaries? Dictionaries are used to map a list of values to another list of values, arranged as key/value pairs. Both the keys and values can be an object or a string of text; key entries can also be defined as a regular expression. ![1.png](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/1%2811%29.png){height="" width=""} Dictionaries are used in Pipe robots to normalize data. For example, if you need to map certain typo's to their actual counterpart or if you want to look up a certain SKU in a dictionary to get the proper name for a product, this can all be done using the dictionaries. To create a new dictionary, 1. Select the **Projects** view. 2. Select the top-right **New** button. 3. Choose **Dictionary**.