How do you spell Consciousness

Available Definitions:
1)  n. - The state of being conscious; knowledge of one's own existence, condition, sensations, mental operations, acts, etc.
2)  n. - Immediate knowledge or perception of the presence of any object, state, or sensation. See the Note under Attention.
3)  n. - Feeling, persuasion, or expectation; esp., inward sense of guilt or innocence.