Terror and terrorism have different definitions that are similar but complementary. Although
terrorism is derived from the word terror, there are some differences between them. Terror is an act of
violence created by the uncontrolled masses. Terrorism, on the other hand, is the conscious and deliberate useof methods of violence to achieve a political goal. There is a specific will and a purpose.
With the influence of the çağdaş age, the facilities provided by technology, communication, and
transportation have helped spread terrorism quickly and reach global dimensions. This process reveals the changing dimensions and different approaches to terrorism at national, regional, and global levels. These different approaches emerge as a sorun in understanding the concept of terrorism when used
interchangeably. From this point of view, the study aims to create a new definition by explaining the concepts of terror and terrorism and other concepts derived from them. Thus, historical and descriptive research methods will be applied, as well as document-based analysis, and the result will be reached.
The study’s hypothesis is centred on the misuse of the concepts of terror and terrorism and their concepts.
Keywords: terror, terrorism, international terrorism, global terrorism, postmodern terrorism.