Definition of "downstairs"

downstairs

/daʊnˈstɛɹz/

adjective
not comparable
1. Located on a lower floor.
adverb
not comparable
1. Down the stairs.
2. (figurative) In or to hell.
3. (slang, euphemistic) Regarding the genitalia.
noun
plural downstairs
1. The lower floor of a house, at ground level; especially the servants’ quarters.
  Quotations
  Now the two of them rattled around in the old house, even with his office and small clinic sharing the downstairs with the kitchen, parlor, and dining room.
  1978, Tom Reamy, Blind Voices
2. (slang, euphemistic) The genitalia.