noun
A very large, intense, and destructive wildfire that typically burns over a vast area and is difficult to control
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The firefighters are working tirelessly to contain the megafire that has been raging for days.
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Have you seen the news about the megafire out west? It's really devastating.
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That megafire is no joke, it's like a beast out of control.
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The conflict between the two countries was like a megafire, spreading rapidly and causing widespread destruction.