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English definition of “riser”


noun (STEP)    /ˈraɪ.zər/ US  /-zɚ/
[C] specialized architecture the vertical part of a stepStairs and lifts risers [plural] US a group of steps on which people sit or stand to see or be seen betterStairs and lifts
(Definition of riser noun (STEP) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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