[ noun ] (religion) an act that is regarded by theologians as a transgression of God's will
Used in print(Joyce O. Hertzler, American Social Institutions;...)
The tensions accompanying a repressive consciousness of wrongdoing or sinning or some tormenting secret are relieved for the less self-contained or self-sufficient by confession , repentance , and penance .
[ adjective ] (religion) transgressing a moral or divine law
"if it be a sin to covet honor, I am the most sinning soul alive"- Shakespeare