Definition of "flareup" [flareup]

• Alternative spelling of flare-up. (noun)

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• "I always get a superbad "flareup" of it for a few weeks after any time change."
• "Portis admitted that there was a past "flareup" with Zorn, but that it happened "a long time ago.""
• "There was a big flareup for a while, and then it looked like VISA was going to replace it."