Pronunciation: (flâr'up"), Strict Standards: Non-static method FenSites::linkTo() should not be called statically in /site/html/dictionary/flareup.html on line 71 [key]
1. a sudden flaring up of flame or light.
2. a sudden outburst or intensification, as of anger or tensions.
3. a sudden outbreak of violence, disease, or any other condition thought to be quelled, checked, or inactive.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.