This is the 3224th most frequent German word.
eye
The German word "Auge" means "eye" in English.
In this sentence, 'im Auge behalten' is an idiomatic expression meaning to monitor or pay attention to something.
Er hat das Auto im Auge behalten.
He kept an eye on the car.
Here, 'Auge' directly refers to the physical organ used for vision.
Das Auge sieht die Farben der Welt.
The eye sees the colors of the world.
Here, 'Auge des Betrachters' metaphorically represents individual perception or opinion.