a series of falls or steps

a process in a chain reaction

प्रक्रिया श्रृंखला

English Usage: The removal of one rule led to a cascade of changes.

Hindi Usage: एक नियम का हटना एक प्रक्रिया श्रृंखला का कारण बना।

a device that multiplies fourfold

someone who has four times as much

किसी के पास चार गुना अधिक

English Usage: After the investment, he became a quadrupler of his initial capital.

Hindi Usage: निवेश के बाद, वह अपना प्रारंभिक पूंजी का चौगुना बन गया।