Englishfor English speakers
Blutopfer an den Kriegsgott
an
Determinative
—
An (or a) is used when the following word could be any of a certain type.
I just ate an apple.
It is indeed an honor to have met you today.
den
Noun
—
A den is a place where a wild animal lives.
The wolf went back to his den to sleep after a day of hunting.
—
A den is a small cave in the side of a hill.