from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A sudden outbreak of flame or light: a flare-up of the embers.
- n. An outburst or eruption: a flare-up of anger.
- n. A recurrence or an intensification: a flare-up of rheumatism.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A sudden outbreak, outburst or eruption (originally of flame, but now used more generally of any violent activity)
- n. A sudden intensification in activity
from the GNU version of the Collaborative International Dictionary of English
- n. A sudden burst of anger or passion; an angry dispute.
- n. A sudden bursting into flame; a flaring.
from The Century Dictionary and Cyclopedia
- n. A sudden flashing or flaring of flame or light.
- n. A sudden quarrel or angry argument.
- n. Nautical, a distinguishing light exhibited as a signal by a pilot vessel, or a signal flare to a vessel which is overtaking another vessel, used as a warning to the ship coming up from astern.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. ignite quickly and suddenly, especially after having died down
- v. erupt or intensify suddenly
- n. a sudden intense happening
flare + up (Wiktionary)