Other forms: wildfires
A wildfire is a blaze spreading fast through open country. Spread like wildfire.
Some landscapes need fire to clear old growth, which is why suppressing every one stores up a worse one. The phrase spread like wildfire is now used of news far more than of flames.
1nounwildfireA blaze spreading fast through open country.
“The wildfire took four thousand hectares in two days.”
wildfire is a fire.
Old English wilde fyr is wild plus fire, and once named an incendiary weapon as well as a natural blaze.
Old English
wilde fȳr
Middle English
wilde fyr
English, today
wildfire
Middle English wilde fyr, wilde fire, wylde fyre, from Old English wilde fȳr. by surface analysis, en + wild + fire.
Etymology from Wiktionary, CC BY-SA