Refutability refers to the ability of a theory or hypothesis to be disproven or contradicted. There are a variety of synonyms that convey a similar meaning to refutability, including falsifiability, testability, and verifiability. Falsifiability pertains specifically to the ability of a theory to be disproven through empirical evidence or observation. Testability also highlights the idea that a hypothesis or theory can be tested and validated through investigation or experimentation. Verifiability focuses on the ability of a theory to be confirmed or verified through evidence or observation. All of these terms underscore the important role that evidence and empirical data play in evaluating scientific theories and hypotheses.