Question 1

What does "burn off" mean?

Accepted Answer

To use up calories, energy, or fat through physical exercise.

Question 2

How do you use "burn off" in a sentence?

Accepted Answer

She went for a long run to burn off the extra calories from the birthday cake.

Question 3

Is "burn off" formal or informal?

Accepted Answer

"burn off" is register-neutral — appropriate in both casual and formal contexts. The 'use up calories/energy' sense is very common in health and fitness contexts. The agricultural sense (burning off stubble or undergrowth) is also well established. The meteorological sense (mist or fog burning off in sunlight) is used in weather forecasting.

burn off

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