1. An electronic dictionary and language interpreter device wherein a first word or words represented in a first language are entered to obtain a second word or words represented in a second language equivalent to the first word or words, comprising: first means for generating a sentence written in either the first language or the second language, said first means including first memory means for storing a plurality of sentences in the first language, the sentences each having provision therein for inserting at least one selected word to be thereby completed, second memory means for storing a like plurality of sentences in the second language, each sentence in the second language being a translation of sentences in the first language stored in the first memory means, and first selecting means for selecting an equivalent one of the sentences stored in said first and second memory means and for generating the selected sentence in response thereto; second means for generating one or more words written in the corresponding first language or second language, respectively, the one or more words being capable of being added to the selected sentence to form a complete sentence, said second means including third memory means for storing a plurality of words in said first language, fourth memory means for storing a like plurality of words in said second language, each word in the second language being a translation of a word in the first language stored in the third memory means, and second selecting means for selecting one or more of the equivalent words stored in the third and fourth memory means and for generating the selected words in response thereto; and adding means for adding the one or more words developed from the second means for generating into the selected sentence generated from the first means for generating thereby obtaining a complete sentence.