Dorothy attends her school half-day; other students nap at school and stay through the afternoon. When I picked her up on Monday, she told me that her friend Wren was "in bed". I said, "Oh, does she stay at school all day?" and Dorothy added, "And all night."
Dorothy refers to the dark (outdoors, or in her bedroom, etc.) as "the darkness". Also, sometimes "cold" is "coldness" and pink is "pinkness".
Dorothy peered inside a burning candle and said, "Look, it made a drink in there."