burn up

US /bɜːrn ʌp/
UK /bɜːrn ʌp/
"burn up" picture
1.

to destroy something by fire

:
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The old shed burned up completely in the fire.
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They decided to burn up all the old documents.
:
incineratecrematecharscorchblaze
2.

to use up something completely, especially fuel or energy

:
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The car will burn up a lot of fuel on this long trip.
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Athletes burn up a lot of calories during intense training.
:
consumeexpenddepleteexhaustdrain
3.

to have a very high fever

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The child was burning up with fever all night.
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I feel like I'm burning up, I should check my temperature.
:
feverishoverheatedhot
:
burnburn offburn downsecond-degree burnthird-degree burnburn the midnight oilburn your bridges