Hello In Lebanon we make a distinction between السلّم and الدرج. الدرج is stairway while السلّم is ladder. I know that in some dialects, السلّم or السلالم is used for "stairway". Is the term الدرج unfamiliar for "stairway" in your dialect? Do you also use different words for both things? And if the same term is used in your dialect, how would you say: "It's too dangerous to climb a ladder positioned on a stairway" or "they put the three ladders on the stairway"?