Such a complex process like crisis management can only be discussed and understood with success if there is agreement on the meanings of its essential terminology. Enhancing and harmonizing the application of existing crisis management terminology goes hand in hand with the need for establishing and coordinating risk management guidelines and practices. Significant changes have also been taking place in the theory and practice of lexicology, as a result of new technology for data-processing and text-based research. Dictionaries arc founded on authentic usage.s of words, their collocations and semantic domains they are associated with. However, large, complex units of meaning are often absent from dictionaries and terminological glossaries. Therefore study of crisis management terminology would be beneficial for the needs of education and training of authorized personnel on individual levels of management. The paper deals with two key terms of crisis management terminology, security and safety. After a short introduction, the method of analysing the data collected in a crisis management corpus is described. The data on two crisis management terms have been collected in a computerized crisis management corpus and processed with the help of Sketch Engine, a web-based program. Then the concepts of security and safety are introduced together with the areas to which the tenors are most frequently related. The summary of security/safety collocations includes the section of common patterns, with similarities as well as differences in their connotations. Finally, several conclusions, which are drawn after analysing the distribution and frequency of terms, reveal the fact that traditional concepts of security and safety have been broadened and reflect changes in society and science.
