Nothing

1. Something trifling, of no consequence or importance. What happened when I left? Nothing!
2. A trivial remark ( especially in the term sweet nothings). He whispered sweet nothings in his sweetheart's ear.
3. A nobody (insignificant person). You are nothing to me now.
4. Not any thing; no thing. I looked out the window but saw nothing.
5. An absence of anything, including empty space, brightness, darkness, matter, or a vacuum. I looked into her eyes and saw nothing.