A family of Microsoft word processing software products for creating web, email, and print documents.
That is the original released Office 2016 version without any patches applied.
Note that you applied an update for Outlook so you should not be checking the version within Word ;-)
Best is to use Windows Update to apply all updates for Office 2016. The version you have installed now contains several actively abused vulnerabilities.
If you are not being offered Office updates via Windows Update see; Not getting Office updates via Windows Update - MSOutlook.info