13. The method of claim 10 , wherein the request to delete the first candidate character comprises a first swipe detected on the touch-sensitive surface of the device, and receiving the input to replace the first candidate character with a different candidate character from the first plurality of other candidate characters comprises receiving an indication of a second input that corresponds to selection of a respective one of the first plurality of other candidate characters, the method further comprising: in response to the second input, updating the user interface to include the respective one of the first plurality of other candidate characters in the candidate character region.
13. The method of claim 10 , wherein the request to delete the first candidate character comprises a first swipe detected on the touch-sensitive surface of the device, and receiving the input to replace the first candidate character with a different candidate character from the first plurality of other candidate characters comprises receiving an indication of a second input that corresponds to selection of a respective one of the first plurality of other candidate characters, the method further comprising: in response to the second input, updating the user interface to include the respective one of the first plurality of other candidate characters in the candidate character region. 25. The method of claim 13 , further comprising: while displaying the respective one of the first plurality of other candidate characters in the candidate character region, receiving an indication of a second swipe detected on the touch-sensitive surface of the device; in accordance with a determination that the second swipe comprises a swipe having a same direction as the first swipe, updating the user interface by deleting the respective one of the first plurality of other candidate characters in the candidate character region; and in accordance with a determination that the second swipe comprises a swipe and hold, the swipe having a same direction as the first swipe, updating the user interface by deleting the respective one of the first plurality of other candidate characters in the candidate character region and other candidate characters in the candidate character region until a release of the hold is detected.