A few days back, I was thinking about the topic of sin. Exactly, what is sin? I thought about what people think sin is. Then I examined the bible to derive a definition of sin. What I found, I found to be very peculiar. In this blog, I will try to summarize my findings. So here we go. What does sin mean? The common or popular meaning of the word “sin” is “doing something bad” or “doing something wrong”.