This is the 875th most frequent German word.
hund
Dog.
In this sentence, 'Hund' is used as a noun to represent the animal (dog) in nominative singular form.
Der Hund läuft im Park.
The dog is running in the park.
In this sentence, 'Hund' is the object of the verb 'sehen' and is in the accusative singular form.
Ich sehe einen Hund auf der Straße.
I see a dog on the street.
In this sentence, 'Hund' is used in the genitive case to indicate possession.