1
: a sudden outburst or intensification
a flare-up of hostilities
2
: a sudden bursting (as of a smoldering fire) into flame or light
a danger of flare-ups
3
: a sudden appearance or worsening of the symptoms of a disease or condition
an asthmatic flare-up
Synonyms
Examples of flare-up in a Sentence
took medication to prevent a flare-up of her asthma
there's no need for an angry flare-up, as we'll take care of the problem immediately
Recent Examples on the Web
Firefighters from other states, Canada, and Mexico have joined efforts to contain flare-ups and prevent new fires.
—
Michael Gfoeller and David H. Rundell, Newsweek, 15 Jan. 2025
Recognizing the cause of the flare-ups can prevent them from erupting.
—Jeanne Phillips, The Mercury News, 15 Jan. 2025
The next 24 hours became an all-out attack of air resources, with enough helicopters responding to the fire’s flare-up that the choppers were, at times, lined up, just waiting for orders to make their next drop.
—Grace Toohey, Los Angeles Times, 14 Jan. 2025
The monarch, 87, was taken to Lillehammer Hospital on Jan. 11 after incurring a flare-up of her existing heart condition while skiing, Sweden Herald reported.
—Rachel Raposas, People.com, 13 Jan. 2025
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Michael Gfoeller and David H. Rundell, Newsweek, 15 Jan. 2025
Recognizing the cause of the flare-ups can prevent them from erupting.
—Jeanne Phillips, The Mercury News, 15 Jan. 2025
The next 24 hours became an all-out attack of air resources, with enough helicopters responding to the fire’s flare-up that the choppers were, at times, lined up, just waiting for orders to make their next drop.
—Grace Toohey, Los Angeles Times, 14 Jan. 2025
The monarch, 87, was taken to Lillehammer Hospital on Jan. 11 after incurring a flare-up of her existing heart condition while skiing, Sweden Herald reported.
—Rachel Raposas, People.com, 13 Jan. 2025
See all Example Sentences for flare-up
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Dictionary Entries Near flare-up
Cite this Entry
“Flare-up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flare-up. Accessed 19 Jan. 2025.
Copy CitationMedical Definition
flare-up
noun
: a sudden appearance or worsening of the symptoms of a disease or condition
an asthmatic flare-up
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