Make definition clearer

Author: BhargaviAnnadevara

articles/azure-glossary-cloud-terminology.md

@@ -14,7 +14,7 @@ ms.workload: na
 ms.tgt_pltfrm: na
 ms.devlang: na
 ms.topic: article
-ms.date: 08/22/2021
+ms.date: 09/17/2021
 ms.author: monicar
 
 ---
@@ -130,7 +130,7 @@ An indexing term that enables you to categorize resources according to your requ
 See [Using tags to organize your Azure resources](./azure-resource-manager/management/tag-resources.md)
 
 ## Tenant
-A tenant represents an organization. It's a dedicated instance of Azure AD that an organization or app developer receives at the beginning of a relationship with Microsoft. That relationship could start with signing up for Azure, Microsoft Intune, or Microsoft 365, for example.
+A tenant is a group of users or an organization that share access with specific privileges to an instance of a product, service, or application. In Azure Active Directory a tenant is an instance of Azure Active Directory that an organization receives when it signs up for a cloud application like Microsoft 365. Each Azure AD tenant is distinct and separate from other Azure AD tenants. Multitenancy refers to an instance of an application shared by multiple organizations, each with separate access to the instance.
 
 ## update domain
 The collection of virtual machines in an availability set that are updated at the same time. Virtual machines in the same update domain are restarted together during planned maintenance. Azure never restarts more than one update domain at a time. Also referred to as an upgrade domain.