Dark
Part of speech: noun
Definition: A complete or (more often) partial absence of light. Ignorance. Nightfall.
Part of speech: adjective
Definition: Having an absolute or (more often) relative lack of light. Dull or deeper in hue; not bright or light. Hidden, secret Without moral or spiritual light; sinister, malign. Conducive to hopelessness; depressing or bleak Lacking progress in science or the arts; said of a time period With emphasis placed on the unpleasant aspects of life; said of a work of fiction, a work of nonfiction presented in narrative form or a portion of either
Example sentence: Walking with a friend in the dark is better than walking alone in the light.
Darkness
Part of speech: noun
Definition: The state of being dark; lack of light.Gloom.The product of being dark.The state or quality of reflecting little light, of tending to a blackish or brownish color.
Example sentence: If no pain, then no love. If no darkness, no light. If no risk, then no reward. It's all or nothing. In this damn world, it's all or nothing.