The meaning of FLARE is a fire or blaze of light used especially to signal, illuminate, or attract attention; also : a device or composition used to produce such a flare.

flare noun [C] (BRIGHT LIGHT) something that produces a flame or bright light and is usually used as a signal, or the flame or light itself:

FLARE definition: to burn with an unsteady, swaying flame, as a torch or candle in the wind. See examples of flare used in a sentence.

a bright light: in case of emergency, light a flare; an outburst; to burst out in sudden, fierce activity and passion: Violence flared up in the ghetto after the verdict.

Astronomy Also called solar flare. a sudden and brief brightening of the solar atmosphere in the vicinity of a sunspot that results from an explosive release of particles and radiation.

Definition of flare noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

FLARE meaning: 1 : to shine or burn suddenly and briefly; 2 : to become suddenly excited, angry, or active often + up

Dec 14, 2025 · flare (plural flares) A sudden bright light. A source of brightly burning light or intense heat. quotations

A flare is a small device that produces a bright flame. Flares are used as signals, for example on ships. ...a ship which had fired a distress flare.

Flare definition: To flame up with a bright, wavering light.