The term Brownies, as noted by the Galactic Guidebook, had three meanings.
- A brownie is a benevolent elf said to haunt houses and secretly do chores.
- A brownie is a square piece of Chocolate cake with nuts in .
- brownie is a junior member of the Guides association.
Sophie looked up the various definitions of brownies when Lucy became a brownie, specifically a junior member of the Guides association. Though she and Brian initially believed that Lucy was an elf. (Brian of the Brownies)