Dictionary, in general, is a book or resource that lists the words of a language (typically in alphabetical order) and gives their meaning, or gives the equivalent words in a different language, often also providing information about pronunciation, origin, and usage. Besides synonyms, lexicon, wordbook, glossary, vocabulary list, vocabulary, word list, word-finder also can find out in any general dictionary. In other words, A Dictionary is a reference book on a particular subject, the items of which are typically arranged in alphabetical order.
Electronic Dictionary is not the exception of its counter part or printed form. Technology has given children a chance to look-up a word and their subsequent meaning and related information without loss of their precious time.