This is the 3056th most frequent German word.
biber
Beaver.
In this sentence, 'Biber' refers to the animal 'beaver', illustrating its biological and ecological role.
Der Biber baut einen Damm am Fluss.
The beaver is building a dam on the river.
Here, 'Biber' is used in a general context to refer to beavers, possibly its life or characteristics.
Mein Kind liebt das Buch über Biber.
My child loves the book about beavers.
The term 'Biber' is used as a proper noun to denote a brand name in this instance.