A step or set of steps between levels, often in a building.

सीढ़ी

English Usage: "She climbed the stair-step to reach the second floor."

Hindi Usage: "वह दूसरे मंजिल पर पहुँचने के लिए सीढ़ी चढ़ गई।"

To act or move in steps, often in an incremental manner.

कदम उठाना

English Usage: "They decided to stair-step their approach to project completion."

Hindi Usage: "उन्होंने प्रोजेक्ट पूरी करने के लिए कदम उठाने का निर्णय लिया।"