on or to an upper floor: His room is upstairs; She went upstairs to her bedroom.
az: yuxarıya, yuxarıda
ru: наверх(у)
♦ noun(plural upstairs)
the upper floor(s): The ground floor needs painting, but the upstairs is nice; (also adjective) an upstairs sitting room.
az: yuxarı mərtəbə
ru: верхний этаж