1. A method comprising: outputting, by a computing device and for display, a graphical keyboard comprising a plurality of keys; receiving, by the computing device, an indication of a continuous gesture comprising a first path in a first direction from a first key of the plurality of keys to a second key of the plurality of keys; determining, by the computing device, that the continuous gesture comprises a second path from the second key that ends at the first key and retraces at least a portion of the first path from the first key to the second key, wherein the second path is in a second direction that is substantially reverse to the first direction; and responsive to determining that the second path ends at the first key and retraces at least the portion of the first path from the first key to the second key in the second direction that is substantially reverse to the first direction, and that the continuous gesture further comprises a third path to a third key, outputting, by the computing device and for display, a character string comprising a third character subsequent to the first character and without the second character output between the first character and the third character.