This is the 15363rd most frequent German word.
verbrenne
"Verbrenne" means "burn" (first-person singular present or imperative form of "verbrennen").
Here, 'verbrenne' means 'burn' as in causing something to be burned.
Ich verbrenne den Kuchen, wenn ich ihn zu lange im Ofen lasse.
I burn the cake if I leave it in the oven for too long.
In this sentence, 'verbrenne' means 'get burned' or 'suffer a sunburn'.
Wenn ich in der Sonne liege, verbrenne ich mich leicht.
When I lie in the sun, I easily get sunburned.
Here, 'verbrenne' refers to the metabolic process of burning calories during exercise.