burn up

(noun) a high-speed motorcycle race on a public road. Synonyms: burnup.

(noun) the amount of fuel used up (as in a nuclear reactor). Synonyms: burnup.

(verb) burn brightly. Synonyms: flare, flame up, blaze up, burn up. Example: "Every star seemed to flare with new intensity."

(verb) use up (energy). Synonyms: burn off, burn, burn up. Example: "Burn off calories through vigorous exercise."

(verb) burn completely; be consumed or destroyed by fire. Synonyms: burn down, burn up, go up. Examples: "The hut burned down." "The mountain of paper went up in flames."