Background and Aim: Using common terms and synonyms, such as concepts related to natural crisis managements, is one of the major challenges in interdisciplinary topics; which are apparently similar but have different meanings and practical implications. “Natural disaster” is one of these terms. The main purpose of this study is to describe the common and professional term in science and creating common language for crisis managements experts.
Methodology: This is a theoretical study based on library documents, and then the collected data were analyzed and described.
Findings and Conclusion: A systemize classification based on the disaster’s sociological aspect; finally a definition of disaster will present to the effect that disaster is a condition which create due to reduction of social resilience and confronting capacity of society against natural hazards that will cause social and spiritual vulnerability. The Farsi translation of the term consists accident, incident and role in its social concept.