1. An electronic dictionary system which comprises: an electronic dictionary memory in which a plurality of word data each representing a word are stored in a predetermined order, and each word data comprises a data division and an additional division, said data division for each word data containing a combination of one or more compressed parts selected from among a first compressed part, a second compressed part and a third compressed part, the first compressed part being selected from a first set of codes indicating the number of first characters that are common between the word corresponding to the word data and the word corresponding to the preceding word data stored in the electronic dictionary, the second compressed part being selected from a second set of codes indicating a suffix which appears in the word, and the third compressed part being a sequence of codes selected from a third set of alphanumeric codes, and the sequence of codes respectively representing each alphanumeric character of the corresponding word whichis not encompassed by said first and second compressed parts of the data division, said additional division for each word data containing an additional code identifying the combination of compressed parts in said data division for the word data; means for reading the word data in the electronic dictionary memory; means responsive to said additional code for determining the combination of compressed parts in the data division for each word data read by said reading means; and means responsive to said determining means for decoding into the corresponding word the codes of the combination of compressed parts contained in the data division of each word data read by the reading means.
1. An electronic dictionary system which comprises: an electronic dictionary memory in which a plurality of word data each representing a word are stored in a predetermined order, and each word data comprises a data division and an additional division, said data division for each word data containing a combination of one or more compressed parts selected from among a first compressed part, a second compressed part and a third compressed part, the first compressed part being selected from a first set of codes indicating the number of first characters that are common between the word corresponding to the word data and the word corresponding to the preceding word data stored in the electronic dictionary, the second compressed part being selected from a second set of codes indicating a suffix which appears in the word, and the third compressed part being a sequence of codes selected from a third set of alphanumeric codes, and the sequence of codes respectively representing each alphanumeric character of the corresponding word whichis not encompassed by said first and second compressed parts of the data division, said additional division for each word data containing an additional code identifying the combination of compressed parts in said data division for the word data; means for reading the word data in the electronic dictionary memory; means responsive to said additional code for determining the combination of compressed parts in the data division for each word data read by said reading means; and means responsive to said determining means for decoding into the corresponding word the codes of the combination of compressed parts contained in the data division of each word data read by the reading means. 2. The electronic dictionary system according to claim 1, wherein the predetermined order in which the word data are stored is an alphabetical order.