Definition of "wildfire" []

• A raging, rapidly spreading fire. (noun)
• Something that acts very quickly and intensely: a land swept by the wildfire of revolution. (noun)
• Lightning occurring without audible thunder. (noun)
• A luminosity that appears over swamps or marshes at night; ignis fatuus. (noun)
• A highly flammable material, such as Greek fire, once used in warfare. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "And we live in San Diego, where clearly a Santa Ana wildfire is a more likely disaster."
• ""The rumor spreading like wildfire is that there's another person in the mix.""
• "The rumor spreading like wildfire is that there's another person in the mix."