A keyword dictionary is an effective method of managing a big list of words that regularly change. You can create keyword lists in a sensitive information type; however, lists have size limitations, and you will be required to edit an XML file to make any changes to them.

You can configure keyword dictionaries from the Microsoft Purview Compliance Portal or via the Security & Compliance PowerShell module. There are some Microsoft best practice recommendations you should be aware of when implementing keyword dictionaries:

• Create an employee audit and create the list from the outcome.
• Collect typical words from some departments using Microsoft Forms.
• Collaborate with some employees, such as those from HR or legal, to create a list of typical words.
• Remember that you can edit the list, so you can improve your results by revising them regularly.

We will now go through the actions you need to complete to build a keyword dictionary...