Title: The Evolving Definition of Threat: Exploring Different Perspectives According to the Merriam-Webster dictionary, a threat is defined as “an expression of intention to inflict evil, injury, or damage” or “one that threatens

Define threat.  Does the definition you researched differ with our authors or other sources?  If so, how? 
As we begin looking at various theories of threat, our view on threat may evolve.  You may bring in outside sources in your effort to define threat.  Dictionary, peer-reviewed, and scholarly sources only, please.
Please use the two sources provided and at least two others.