Microsoft Office 365
Office 365 refers to subscription plans that include access to Office applications plus other productivity services that are enabled over the Internet (cloud services). The fully installed applications include: Word, Excel, PowerPoint, OneNote, Outlook, Publisher, Access, OneDrive & Skype amongst others.
Microsoft Azure
Is a cloud computing service created by Microsoft for building, testing, deploying, and managing applications and services through a global network of Microsoft-managed data centres.