To have risen sharply or increased suddenly, often in a rapid or dramatic way.

अचानक बढ़ना

English Usage: "The prices spiked after the announcement."

Hindi Usage: "घोषणा के बाद कीमतों में अचानक बढ़ोतरी हुई।"

A sharp increase or rise in something, often used in contexts like statistics or graphs.

तीव्र वृद्धि

English Usage: "There was a spike in the number of infections last week."

Hindi Usage: "पिछले हफ्ते संक्रमण की संख्या में एक तीव्र वृद्धि हुई।"