What is another word for action and reaction?
Pronunciation: [ˈakʃən and ɹɪˈakʃən] (IPA) 
The words action and reaction describe a cause-and-effect relationship, where an action produces an effect that, in turn, produces another action. Synonyms for these terms include response, consequence, outcome, impact, and repercussion. They all suggest a reciprocal relationship between two events or conditions. Response emphasizes a reaction that is prompted by a stimulus, while consequence implies a result that follows from a particular action. Outcome suggests a final result or conclusion, while impact suggests a powerful effect or influence. Repercussion indicates a negative consequence, often one that is unforeseen or unintended. Understanding these synonyms can help to convey the nuances of the cause-and-effect relationship more precisely.
