NNT is an abbreviation commonly used in medical research to represent the "number needed to treat" a patient to achieve a specific outcome. However, there are some synonyms for this term that can be used in different contexts. Some of the synonyms that can substitute NNT include "treatment response rate," "relative risk reduction," "absolute risk reduction," and "number needed to harm" (NNH). Treatment response rate is an important endpoint in clinical trials that shows how many patients responded to the therapy. The relative and absolute risk reduction terms indicate the difference in risk reduction between the treated group and the control group, respectively. Finally, NNH describes the number of patients that need to be treated to cause harm to one individual.