14. The device of claim 12 , further comprising instructions configured to instruct the processor to receive, from the touch-sensitive display, a second indication of a user selection of a second key displayed on the secondary screen.
14. The device of claim 12 , further comprising instructions configured to instruct the processor to receive, from the touch-sensitive display, a second indication of a user selection of a second key displayed on the secondary screen. 15. The device of claim 14 , further comprising instructions configured to instruct the processor to: in response to receiving the second indication, output an audible signal representing a word that is represented by the second key to a user of language system; and display the home screen on the touch-sensitive display.