As nouns the difference between sin and peccadillo
is that sin is a violation of God's will or religious law while peccadillo is a small flaw or sin.
As a verb sin
is to commit a sin.
As a proper noun Sin
is the god of the moon in Sumerian mythology.
As an abbreviation SIN
is sinaloa, a state of Mexico.
sin
Translingual
Symbol
(head)
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peccadillo
Noun
(en-noun)
A small flaw or sin.
A petty offense.