1. A translation device, comprising: a dictionary that stores a set of words and their corresponding meanings in a plurality of languages; an input unit that inputs a document; a recognizing unit that recognizes text in the inputted document; an analyzing unit that divides the text recognized by the recognizing unit into words; a translating unit that translates each of the words obtained by the analyzing unit into a translated term by using the dictionary; and an output unit that outputs an output image containing the translated term for a key word.