STAIRCASE


Meaning of STAIRCASE in English

/ ˈsteəkeɪs; NAmE ˈsterk-/ noun

a set of stairs inside a building including the posts and rails (= banisters ) that are fixed at the side :

a marble / stone / wooden staircase

—see also spiral staircase —picture at spiral

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.