Microsoft Word, first released in 1983, has become the world's dominant word processor with over 1.5 billion monthly active users, supporting 5 platforms, real-time collaboration, and Copilot AI writing — the de facto standard for document processing.
Microsoft 365 Business is Microsoft's office and collaboration suite for small and medium businesses with up to 300 employees, integrating desktop Office, Exchange business email, Teams, OneDrive and SharePoint, with over 345 million monthly active users worldwide.
Microsoft 365 is Microsoft's cloud productivity suite covering Word, Excel, PowerPoint, Outlook, Teams, and OneDrive, with 400M+ commercial paid seats and 300M+ Teams monthly active users, one of the most comprehensive office solutions.