adverb / adjective
downstairs
On or toward a lower floor of a building.
The kids play downstairs while their parents work on the second floor.
Etymology
The compound preserves its physical route: moving down the stairs reaches a lower floor. It also describes being on that floor without implying motion.
More examples
- Please take these boxes downstairs.
- Our downstairs neighbors invite us over for dinner.
- The downstairs bathroom is next to the kitchen.