This is the 8974th most frequent German word.
leder
Leather.
Here, 'Leder' refers to the material 'leather', indicating the substance from which the sofa is made.
Das Sofa ist aus echtem Leder gefertigt.
The sofa is made of real leather.
In this sentence, 'Leder' qualifies 'Jacke', forming the compound 'Lederjacke', which denotes a jacket made of leather.
Er trägt eine elegante Lederjacke.
He is wearing an elegant leather jacket.
Here, 'Leder' is used metaphorically to describe other materials resembling leather in appearance or texture.