This is the 11543rd most frequent German word.
stereoanlage
Stereo system.
Here, 'Stereoanlage' is used as the subject and refers to a piece of equipment used for audio playback.
Die Stereoanlage steht im Wohnzimmer.
The stereo system is in the living room.
In this sentence, 'Stereoanlage' is the direct object of the verb 'gereinigt' and refers to the audio system being cleaned.
Ich habe die Stereoanlage gestern gereinigt.
I cleaned the stereo system yesterday.
Here, 'Stereoanlage' is the subject complement in a comparative question, emphasizing a characteristic of different stereo systems.