What is the definition of sin

1). Sin is any act regarded as a transgression of divine law, especially

a willful or deliberate violation of some religious or moral principle.

2). 'Sin' is an abbreviation for 'sine'. In a right triangle, the 'sine' of one of

the acute angles is the ratio of the length of the side opposite the angle

to the length of the hypotenuse.

Sin is used to find the degree of an angle. Sin is the opposite over hypotenuse.