7. A dictionary data display method of an electronic dictionary device which includes (i) a display module including a first and a second display screen, (ii) a dictionary storage module that stores dictionary data that causes a plurality of entry words including compound words obtained by connecting a plurality of words to correspond to explanatory information on the entry words, and (iii) a processor, the dictionary data display method being implemented by the processor, and the method comprising: retrieving entry words for compound words from the entry words in the dictionary data stored in the dictionary storage module, listing words common to the retrieved compound words, and displaying the listed words on the first display screen; reading, from the dictionary data, entry words for compound words connecting with a word specified by a user operation in a list displayed on the first display screen and displaying the entry words for the compound words connecting with the word specified by the user operation in list form on the second display screen; and reading a corresponding piece of explanatory information from the dictionary data when a compound word has been specified according to a user operation in a compound word list displayed on the second display screen and displaying the corresponding piece of explanatory information on the second display screen.
7. A dictionary data display method of an electronic dictionary device which includes (i) a display module including a first and a second display screen, (ii) a dictionary storage module that stores dictionary data that causes a plurality of entry words including compound words obtained by connecting a plurality of words to correspond to explanatory information on the entry words, and (iii) a processor, the dictionary data display method being implemented by the processor, and the method comprising: retrieving entry words for compound words from the entry words in the dictionary data stored in the dictionary storage module, listing words common to the retrieved compound words, and displaying the listed words on the first display screen; reading, from the dictionary data, entry words for compound words connecting with a word specified by a user operation in a list displayed on the first display screen and displaying the entry words for the compound words connecting with the word specified by the user operation in list form on the second display screen; and reading a corresponding piece of explanatory information from the dictionary data when a compound word has been specified according to a user operation in a compound word list displayed on the second display screen and displaying the corresponding piece of explanatory information on the second display screen. 8. The dictionary data display method of claim 7 , wherein the first display screen and the second display screen comprise separate display devices.