The term "domino theories" refers to the idea that political events or movements in one country can have a ripple effect, causing similar events or movements in neighboring countries and beyond. There are various synonyms for this concept, including chain reaction, butterfly effect, ripple effect, and snowball effect. Each of these terms emphasizes the idea that a small initial event can have a larger and wider impact. The use of these synonyms often depends on the context in which the idea is being discussed, such as in political science, social movements, or economic theory. Regardless of the term used, they all capture the interconnectedness of events and the potential for widespread consequences.