noun / verb
sin
SIN/sɪn/
An act that violates religious or moral law.
Stealing the unsuspecting woman's wallet is a sin against the duty of honesty.

Etymology
Old English synn already covered offenses against God as well as guilt and misdeeds. The modern religious or moral sense continues that association between wrongdoing and culpability.
In context
God will not wink at sin. God will not simply pass over it without exacting a punishment for it.
More examples
- He asks forgiveness for the sins he has committed.
- They believe that anyone who steals from a neighbor sins.
- She worries that she has sinned by breaking her promise.
Forms
sin · sins · sinned · sinning
sinner noun — A person who commits a sin.
sinful adjective — Violating religious or moral law.
Similar words
- wrongdoing
- Wrongdoing covers improper behavior without necessarily invoking religious law.
- transgression
- Transgression emphasizes crossing a moral boundary or breaking a rule.
- vice
- Vice usually describes a lasting moral fault, not one act.