brain
The word 'Gehirn' is the German translation for 'brain'. It is used to refer to the main organ of the human nervous system, located in the skull. It controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sense organs, and making decisions as to the instructions sent to the rest of the body. 'Gehirn' is a noun and is a neutral noun, meaning its definite article is 'das'.
The brain is a complex organ.
This sentence simply demonstrates the usage of 'Gehirn' in describing it as a complex organ, which emphasizes its intricate structure and functioning.
I have trained my brain to learn.
This sentence uses 'Gehirn' in the context of learning, implying that one has put in effort to improve their brains' ability to learn and understand new concepts.
Without our brain, we could not think.
This sentence demonstrates the usage of 'Gehirn' in acknowledging its central role in enabling us to think and process information.