deutschdictionary
adverb
(IN A LOWER POSITION THAN SOMETHING)
The dog is lying underneath. - Der Hund liegt darunter.
preposition
(IN THE MIDST OF A GROUP)
There are many, among them the best. - Es gibt viele, darunter die besten.
(TO CONTAIN AS PART OF A WHOLE)
We have many options, including the latest. - Wir haben viele Optionen, darunter auch die neuesten.