1. To become extinguished; as of lights or candles
2. To go out of fashion; become unfashionable.
3. To leave the house to go somewhere
4. To take the field, as a soldier.
5. When something that is burning goes out, it stops burning because it has no more fuel or because something, such as water or lack of oxygen, has caused it to stop burning.
6. When an electrical light goes out, it stops producing light because it is no longer receiving power.