How to sync personal dictionary between devices (Google Keyboard)?
I'd suggest you try the below troubleshooting steps:


Clear cache for Google Keyboard app (Go to Settings > Apps or Application Manager > ALL > Google Keyboard > Storage > Clear cache > OK).
Clear cache data for the Google Play Store app.
Uninstall and reinstall the Google Keyboard updates. (Go to Settings > Apps or Application Manager > Google Keyboard > Uninstall Updates > OK).


If the above steps don't help, I'd suggest you contact our one-on-one support team using this link for better assistance.