10. A handheld mobile communication terminal comprising: a display unit configured for the handheld mobile communication terminal; a storage unit for storing dictionary information; and at least one control processor for: controlling the display unit to display at least a portion of a text document, in response to at least one touch input for selecting a word, displaying an enlarged version of a part of the displayed text document and providing an indication of a selected word and a visual element for receiving a user request for dictionary information corresponding to the selected word among the part of the displayed text document, the visual element overlaying less than all of the displayed text document, in response to the user request for the dictionary information via the visual element, controlling the display unit to display a dictionary screen in place of the displayed text document so that the dictionary screen visually appears to be over the entire displayed text document, the dictionary screen showing the dictionary information corresponding to the selected word, and in response to a user request for termination of the dictionary screen, controlling the display unit to return from the dictionary screen to a screen showing the displayed text document with the indication of the selected word remaining, wherein the enlarged version of the part of the displayed text document and the part of the displayed text document are both displayed at the same time.
10. A handheld mobile communication terminal comprising: a display unit configured for the handheld mobile communication terminal; a storage unit for storing dictionary information; and at least one control processor for: controlling the display unit to display at least a portion of a text document, in response to at least one touch input for selecting a word, displaying an enlarged version of a part of the displayed text document and providing an indication of a selected word and a visual element for receiving a user request for dictionary information corresponding to the selected word among the part of the displayed text document, the visual element overlaying less than all of the displayed text document, in response to the user request for the dictionary information via the visual element, controlling the display unit to display a dictionary screen in place of the displayed text document so that the dictionary screen visually appears to be over the entire displayed text document, the dictionary screen showing the dictionary information corresponding to the selected word, and in response to a user request for termination of the dictionary screen, controlling the display unit to return from the dictionary screen to a screen showing the displayed text document with the indication of the selected word remaining, wherein the enlarged version of the part of the displayed text document and the part of the displayed text document are both displayed at the same time. 15. The terminal of claim 10 , wherein the text document comprises at least one of a message, an email, a Social Network Service (SNS), a web page, and text received from a data server.