upstairs: Meaning and Definition of

up•stairs

1. up the stairs; to or on an upper floor.
2. in the mind: to be a little weak upstairs.
3. to or at a higher level of authority: You may have to take the matter upstairs.
4. at or to a higher level in the air.
5. to promote (a person) to a higher position, usually having less authority, in order to be rid of him or her.

1. of, pertaining to, or situated on an upper floor: an upstairs window; an upstairs apartment.

1. an upper story or stories; the part of a building or house that is above the ground floor: The upstairs of this house is entirely rented.
2. a higher command or level of authority: We can't take action till we have approval from upstairs.