A sudden outbreak of flame or light: a flare-up of the embers. (noun)
An outburst or eruption: a flare-up of anger. (noun)
A recurrence or an intensification: a flare-up of rheumatism. (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.
Use "flare-up" in a sentence
"The episode is the latest flare-up of tension between the companies over issues including Yahoo's unwillingness to sell back its stake to Alibaba Group and Yahoo's frustration over the management of its brand in China."
"The student had sought me out to ask whether, as the Martin Peretz Professor of Yiddish Literature, I might offer an opinion on the flare-up."
"Another minicrisis, such as a repeat of the spring's flare-up of sovereign-debt worries in Europe, also could cause corporate bonds to suffer."