flare 1 of 2 noun ˈfla (ə)r ˈfle (ə)r 1 : a fire or blaze of light used to signal, light up something, or attract attention also : a device or material that produces such a flare 2 : an unsteady glaring …

Britannica Dictionary definition of FLARE 1 [no object] : to shine or burn suddenly and briefly A match flared (up) in the darkness. 2 [no object] : to become suddenly excited, angry, or active Tempers flared [=people became angry] during the debate. — often + up The fighting flared up again after a two-week lull.

1. To undergo combustion: blaze, burn, combust, flame. 2. To become manifest suddenly and in full force.Also used with up: break out, burst (forth or out), erupt, explode. 3. To react explosively or suddenly.Also used with up:

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: The boat is equipped with flares. Did you see that …

British Dictionary definitions for flare a blaze of light or fire used to illuminate, identify, alert, signal distress, etc the device producing such a blaze

flare 1 of 2 noun 1 as in burst a sudden and usually temporary growth of activity a flare in gift card sales around graduation time Synonyms & Similar Words Relevance burst flurry outburst flutter flare-up outbreak flicker surge spurt eruption flash increase explosion recurrence boost renewal upturn flood recrudescence upswing pickup rush spree

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: The boat is equipped with flares. Did you see that …

A flare, also sometimes called a fusée, fusee, or bengala in some Latin-speaking countries, [clarification needed] is a type of pyrotechnic that produces a bright light or intense heat without an explosion. Flares are used for distress signaling, illumination, or defensive countermeasures in civilian and military applications. Flares may be ground pyrotechnics, projectile pyrotechnics, …

flare verb [ intransitive ] / flɛər/ (also flare up / ˈflɛər ˈʌp/) to suddenly become worse 突発（とっぱつ）する Violence flared up across the country. 国中で暴動が発生した。 a skin condition that can flare up at any time 常に肌荒れのおそれがある皮膚疾患 to suddenly burn 燃（も）え上（あ）がる Flames flared red in the sky. 炎が空に向かって赤く燃え上がった。

flare (flâr) n. 1. A brief wavering blaze of light. 2. An outbreak, as of emotion or activity. 3. An expanding or opening outward. 4. Medicine a. An area of redness on the skin surrounding the primary site of infection or irritation. b. A sudden worsening of the symptoms of a disease or condition: treating an arthritis flare.