Pandemics, also known as global health crises, are the outbreaks of infectious diseases that spread rapidly across multiple countries or continents. Some synonyms for the term "pandemics" include epidemics, plagues, outbreaks, contagions, infections, and diseases. Each of these words represent different aspects of pandemics, and are used interchangeably to describe the severity, scale, and impacts of these global health emergencies. While pandemics have occurred throughout history, advances in travel and globalization have increased the ease with which diseases can spread, making it more important than ever to be prepared to respond to these outbreaks and find ways to prevent them in the future.