/ ˈraɪzə(r); NAmE / noun
1.
early / late ~ a person who usually gets out of bed early / late in the morning
2.
( technical ) the vertical part between two steps in a set of stairs
—picture at staircase
—compare tread
/ ˈraɪzə(r); NAmE / noun
1.
early / late ~ a person who usually gets out of bed early / late in the morning
2.
( technical ) the vertical part between two steps in a set of stairs
—picture at staircase
—compare tread
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005