How do I clear my learnt language data?

Data stored in SwiftKey Cloud:

To remove the data from your SwiftKey Cloud, then you can do so by going into SwiftKey Settings->SwiftKey Cloud->Scroll down to ‘Delete cloud account’ and select ‘OK’. Please note that this will unregister all of your connected devices, and also delete your backed-up data from SwiftKey Cloud.

Local data stored on device:

Go into SwiftKey Settings->Advanced->Clear data on this device.

See the how-to video here.

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