salvation

ADJECTIVE:
1a.     Preservation or deliverance from destruction, difficulty, or evil.
1b.     A source, means, or cause of such preservation or deliverance.
2.     Christianity:
              a. Deliverance from the power or penalty of sin; redemption. 
              b. The agent or means that brings about such deliverance. 

sin

NOUN:
1a.     An offense against religious or moral law.
1b.     An action that is or is felt to be highly reprehensible: it's a sin to waste food.
1c.     An often serious shortcoming: fault.
2a.     Transgression of the law of God.
2b.     A vitiated state of human nature in which the self is estranged from God.

VERB:
1.      To commit a sin.
2.      To commit an offense or fault.