1. A translation apparatus for translating article information in a first language including an article body and a related headline into a second language, comprising: a decision unit configured to discriminately identify the article body and the headline; a phrase alignment processing unit configured to respectively extract a noun phrase from the headline and a noun phrase candidate from a head sentence of the article body, to count coincident words between the noun phrase and the noun phrase candidate, and to output the noun phrase and the noun phrase candidate as a phrase alignment result if a coincidence ratio based on the counted value is above a threshold; and a translation unit configured to translate the article body and the headline into the second language based on the phrase alignment result.