The main goal of this publication was to experimentally create a set of multilingual glossaries (English/German/Czech/Slovak) of the most frequent words in the European Parliament using quantitative corpus-based lexical analysis of the Europarl corpus. The result was aimed to help advanced non-native speakers of English to acquire active vocabulary in their language combination for effective oral communication in the political discourse. This publication is based on the inductive transdisciplinary approach - creating a useful language learning tool represented the main research problem that was to be solved through application of knowledge from various disciplines such as English language teaching, speech science, lexicology, terminology, language for special purposes with a special focus on politolinguistics, computer assisted vocabulary learning, and finally, corpus linguistics as a working method for corpus analysis. The publication puts the case for using multilingual glossaries based on high frequency word lists as a didactic tool, but the effectiveness of this didactic method still remains to be validated in other experimental studies.