Software Suites are generally in the All Apps Menu as a Group.
The Group in this case is generally called Microsoft Office and can usually be found by scrolling to the right in the all apps menu screen and there you should see Word.
There's a learning curve..... what can I say.
Use the right click context menu and the "pin to" option or the go to file location option and from there right click again and you can "pin to taskbar", "pin to start", or "Send To" / Desktop (create shortcut).
It all works just takes time. After a while it'll be second nature and then when you switch to Windows 10, you'll be wanting the Windows 8.1 Start Screen back.