A temporary pause or reduction in something, often used in the context of weather or intensity.

अस्थायी विराम

English Usage: "There was a letup in the rain after three days of downpour."

Hindi Usage: "तीन दिन की वर्षा के बाद बारिश में अस्थायी विराम आया।"

To ease up or diminish in intensity.

कम करना

English Usage: "The wind didn't let up all night."

Hindi Usage: "तूफान सारी रात कम नहीं हुआ।"