In the first part of this dictionary, there are Latin words and phrases that are useful in academic, political, and scientific discourse. It also includes the most important Latin proverbs and sayings with their possible corresponding ancient Greek ones. In the second part, there are some foreign phrases useful in modern Greek and other European languages. Thus, this work, which is unique in its kind in modern Greek literature, is an extremely valuable tool for politicians, diplomats, lawyers, judges, philologists, theologians, journalists, academics, writers, interpreters, translators, etc.