Because many phrases and expressions are often reused in different documents, it is important to collect them with the corresponding translations in the form of a dictionary. Such dictionaries (Translation Memory) can significantly accelerate the translation process. They can be also be a source of suggestions for new phrases that are translated for the first time. The use of dictionaries significantly reduces the amount of work needed to translate a text. They can increase the speed and the quality of translation and ensure the correctness and consistency of the translator’s work. In Mediatrad, every document is added to the existing database as a new dictionary and can be reused in future translations. Dictionaries can be also imported (and exported) in the form of csv or tmx files.