A Burn

1. A physical injury caused by heat, cold, electricity, radiation or caustic chemicals.
2. A sensation resembling such an injury
3. The act of burning something with fire.
4. (slang) An intense non-physical sting, as left by shame or an effective insult.
5. (slang) An effective insult, often in the expression sick burn (excellent or badass insult).
6. Physical sensation in the muscles following strenuous exercise, caused by build-up of lactic acid.
7. (uncountable, UK, chiefly prison slang) Tobacco.
8. (computing) The writing of data to a permanent storage medium like a compact disc or a ROM chip.
9. The operation or result of burning or baking, as in brickmaking.
10. (uncountable) A disease in vegetables; brand.
11. (aerospace) The firing of a spacecraft's rockets in order to change its course.