Actual sin is a term used in Christian theology to refer to a specific, intentional act of wrongdoing. The concept of actual sin has been discussed and debated among religious scholars for centuries, with some arguing that all sins are equally serious, while others believe that some sins are more serious than others. Some synonyms for actual sin include "grave sin," "mortal sin," and "serious sin." These terms are used to describe sins that are considered to be more severe than lesser sins such as venial sins. Regardless of one's beliefs about actual sin, it is generally agreed that acknowledging and repenting for one's sins is an important part of spiritual growth.