Contemporary discourse on security has been dominated by general and sometimes even ideological considerations in which attention is paid to consequences of deepening and broadening of meaning of the term security. Critical approaches, assessment of the sense of human security or extension of the sense of security to provision of public goods are dominating the discourse on security. Only in some cases a question is being asked: What security is about?Usually security is dealt with such concepts as threat, danger, risk, vulnerability, resilience, etc. In the present discussions we can even observe replacement of the term threat with the concept of risk (ârisk societyâ). As to make the discussion on security more relevant to the needs of policy making, it is necessary to identify attributes of security in a systemic sense. It has been already accomplished by this author in the research project of AFES-PRESS. Other members of AFES-PRESS and associated authors also have conducted research on the role of prediction in security theory, or on the role of time and space in theoretical considerations on security. Results of research have been published in a book edited by an international team of scholars under auspices of AFES-PRESS (Hexagon Series published by Springer Verlag). In the book this author has proposed a core concept of security including basic components of any discourse on security â" threat, risk, securitization, referent object, disturbance, vulnerability, etc.Prediction and anticipation can be regarded as most important factors in any application of the utterance of security. Therefore it is necessary to study how attributes (characteristics) of the concepts used in every discourse on security can be identified and interpreted. In the contemporary considerations such terms as risk, threat, vulnerability, resilience and similar ones are more frequently applied in studies on broadened and deepened ideas of security. It is obviously not possible the define those terms unequivocally but at the same time it is not acceptable that in too many instances they are used as freely interpreted notions, almost âbuzzwordsâ. It is thus necessary to elaborate more detailed and precise definitions of those terms along with identification of the links between their interpretations and applications in policy making.The aim of this paper is to provide a deepened interpretation of such terms as threat, risk, vulnerability, resilience and similar ones in relation to security-oriented considerations. Majority of dominant interpretations of security (widened and broadened) will be taken into account. The role of prediction and anticipation in identification of threats and vulnerabilities will be the main topic of analysis. The basic epistemological assumptions of research on the role of prediction and anticipation in analysis of risk and similar concepts will stem both from mathematical modeling, including the so-called complexity approach (complex systems approach) as well as from hermeneutical considerations. Results of the study presented in the paper will allow for better understanding of the sense of risk, threat, vulnerability and associated notions in security discourse as well as for better understanding of relations between them. I addition to theoretical significance, such a clarification will facilitate policy oriented activities and communication both for policy purposes and for social communication. ..PAT.-Unpublished Manuscript [ABSTRACT FROM AUTHOR]