This is the 3063rd most frequent German word.
blut
"Blut" means "blood" in English.
Here, 'blut' is used as a noun referring to the bodily fluid within the circulatory system.
Das Blut fließt durch die Adern.
The blood flows through the veins.
In this case, 'blut' is metaphorically used to indicate an innate talent or characteristic.
Er hat es im Blut, ein guter Musiker zu sein.
He has it in his blood to be a good musician.
Here, 'blut' is part of a compound word 'Blutmond,' which metaphorically describes the appearance of the moon during a lunar eclipse.