--- title: "Dictionaries" slug: "dictionaries-1" updated: 2025-03-12T18:25:12Z published: 2025-03-12T18:25:12Z canonical: "help.mozenda.com/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. # Dictionaries Dictionaries are used to map a list of values to another list of values, arranged as key/value pairs, and is commonly used for data normalization. Both the keys and values can be an object or a string of text; key entries can also be defined as a regular expression (RegEx). To create a new dictionary: 1. Select the **Projects** view. 2. Click **New**. 3. Click **Dictionary**. ![Screenshot 2021-03-30 at 14.38.32.png](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/Screenshot%202021-03-30%20at%2014.38.32.png) For example, if you need to map common typos to their correct 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. Essentially, it is mapping from one value to another - like **BLCK** to **BLACK** or **1K** to **1000**. A dictionary can contain several thousands of entries like this and you use it in a Pipes robot. ![1.png](https://cdn.document360.io/03076343-9561-4857-8a4e-9f3bfed20ced/Images/Documentation/1%2811%29.png)