Disease-free survival is a metric used in the medical field to measure the length of time a patient remains disease-free after receiving treatment. Alternative synonyms that can be used to describe this term include "progression-free survival," which is often used in the context of cancer treatment, and "recurrence-free survival," which is typically used in the context of cancer or other diseases with high rates of recurrence. Other synonyms for disease-free survival include "event-free survival," "relapse-free survival," and "cure rate." Each of these terms can be used interchangeably with disease-free survival to measure the effectiveness of a particular treatment or therapy in preventing disease reoccurrence.