fog, n. 1. The visible suspension of water droplets near the earth's surface, reducing horizontal visibility to less than one kilometer. 2. A calendar's last page dissolving in the mouth. 3. The substance through which an introvert moves in order to reach other people; also, the substance an introvert generates in order to survive having reached them. 4. (Wellington usage) Weather so persistent it ceases to be weather and becomes architecture. See also: sky as ceiling, cloud as wall. 5. The material of which sleep is made when sleep is 79% efficient — not quite water, not quite air, not quite rest. 6. What remains of 6,714 footprints once the foot has lifted. 7. A two-year-old's name for the space between the front door and the car. Cf. "the grey part." 8. The only honest medium for rendering a year's final day: not fireworks, not champagne, but passage through necessary obscurity, steady, steady, steady, until the small warm light.