1. A mobile terminal, comprising: a voice receiving unit configured to receive input voice; a controller configured to convert the received input voice to text; a display configured to display the converted text; and an input unit configured to select a word included in the displayed converted text, wherein the controller is further configured to control the display to display a plurality of possible candidate words corresponding to the selected word in an arrangement in which a corresponding displayed candidate word is displayed with a proximity from the selected word that is based on how similar the corresponding candidate word is to the selected word.