to suddenly increase in intensity or show

to spread out or become wider

अचानक तीव्रता में बढ़ना या दिखाना

English Usage: The fireworks began to flare out in the night sky.

Hindi Usage: आतिशबाज़ी रात के आसमान में अचानक तीव्रता से फैलने लगी।

to become less bright or fade

कम उज्ज्वल होना या फीका पड़ना

English Usage: The light from the lantern began to flare out as the wind picked up.

Hindi Usage: जैसे-जैसे हवा तेज हुई, लालटेन की रौशनी फीकी पड़ने लगी।