CmdID

CmdID / PowerShell / Cmdlets / Remove

Remove-DlpKeywordDictionary

Use the Remove-DlpKeywordDictionary cmdlet to remove data loss prevention (DLP) keyword dictionaries from the Microsoft Purview compliance portal. Exchange PowerShell reference

From the Exchange PowerShell reference 3 parameters Its page in the reference

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Parameters

3 in the Exchange PowerShell reference
-IdentityThe Identity parameter specifies the name of the DLP keyword dictionary that you want to remove.
-Confirm, -cfThe Confirm switch specifies whether to show or hide the confirmation prompt.
-WhatIf, -wiThe WhatIf switch doesn't work in Security & Compliance PowerShell.