For the Language button on the Review ribbon, if you don't see it (as circled in pink below) you may have to customize your Ribbon. It could be that you have add-ins that I don't have and those are pushing it out of the way, or it got deselected somehow.

If you go out to the right side of the Review ribbon to a blank spot (no buttons), right mouse click and select Customize the Ribbon. Then check to see under Review that the Language section is there. Should look pretty much like this (also 365).

You can also add it to your Quick Access Toolbar. You can see I have a lot of little quirky buttons beneath my ribbon; a lot of them are macros but some are just commands I use a lot.

Attached Images

language_ribbon.jpg (64.4 KB, 10 views)