Do things quickly with Tell Me
You'll notice a text box on the ribbon in Word 2016 that says Tell me what you want to do. This is a text field where you can enter words and phrases about what you want to do next and quickly get to features you want to use or actions you want to perform. You can also use Tell Me to find help about what you're looking for, or to use Smart Lookup to research or define the term you entered.
Work together in real time
If you store your document online at OneDrive or SharePoint, and then share it with colleagues who use Word 2016 or Word Online, you can see each others' changes to the document as they happen. After you save the document online, click Share to generate a link or an email invitation. When your teammates open the document and agree to automatically share changes, you'll see their work in real time.
Insights into what you're working on
Smart Lookup, powered by Bing, brings research directly into your Word 2016. When you select a word or phrase, right-click it, and choose Smart Lookup, the Insights pane opens with definitions, Wiki articles, and top related searches from the web.
Including math equations has gotten much easier. Now you can go to Insert > Equation > Ink Equation any time you want to include a complex math equation in your document. If you have a touch device, you can use your finger or a touch stylus to write math equations by hand, and Word 2016 will convert it to text. (If you don't have a touch device, you can use a mouse to write, too). You can also erase, select, and correct what you've written as you go.
Improved version history
Now you can go to File > History to see a complete list of changes that have been made to your document and to access earlier versions.
Click Share to share your document with others on SharePoint, OneDrive, or OneDrive for Business, or to send a copy as an email attachment.
Faster shape formatting
When you insert shapes from the Shapes gallery, you can choose from a collection of preset fills as well as theme colors to quickly get the look you want.