Knock-on effects refer to the unintended consequences or impacts of a particular action or event. Alternative synonyms for this term include ripple effects, domino effects, spillover effects, or chain reactions. These terms all describe the idea that one occurrence can lead to a succession of additional consequences. For example, a company laying off workers may lead to those workers being unable to pay their bills, causing a ripple effect on the economy. Another example may be a car accident causing a domino effect on traffic. Understanding the various synonyms for knock-on effects is useful in helping individuals to identify the potential outcomes of their actions and the impact they may have on others and the environment.