This is the 13665th most frequent German word.
eingebaut
"Built-in" or "integrated."
Here, 'eingebaut' is used as an adjective that indicates the refrigerator is integrated into the design or structure of the kitchen.
Die Küche hat einen eingebauten Kühlschrank.
The kitchen has a built-in refrigerator.
In this case, 'eingebaut' is the past participle of the verb 'einbauen,' used to describe the action of installing or integrating a bookshelf.
Mein Vater hat das neue Bücherregal selbst eingebaut.
My father himself installed the new bookshelf.
Here, 'eingebautes' is an adjective derived from 'eingebaut,' showing attribution and modifying 'System'.