1. To commit a sin; violate a law of God.
2. To commit a faux pas or fault; SYN. blunder, boob, goof.

ETYM Old Eng. sinne, as. synn, syn.
1. An act that is regarded by theologians as a transgression of God's will; SYN. sinning.
2. Estrangement from god; SYN. sinfulness, wickedness.
3. The 21st letter of the Hebrew alphabet.
4. (Colloquial) Violent and excited activity; SYN. hell.
Transgression of the will of God or the gods, as revealed in the moral code laid down by a particular religion. In Roman Catholic theology, a distinction is made between mortal sins, which, if unforgiven, result in damnation, and venial sins, which are less serious. In Islam, the one unforgivable sin is shirk, denial that Allah is the only god.
In Christian belief, humanity is in a state of original sin and therefore in need of redemption through the crucifixion of Jesus. The sacrament of penance is seen as an earthly means of atonement for sin. The seven deadly sins are the vices leading to sin.

sine

(Akkadian) God of the moon; counterpart of Sumerian Nanna.