This is the 6970th most frequent German word.
fitness
Physical well-being and the ability to stay healthy and perform physical activities.
Here, 'Fitness' is part of the compound word 'Fitnessstudio,' referring to the place where sport activities for fitness are performed.
Mein Fitnessstudio bietet Kurse für alle Altersgruppen an.
My gym offers classes for all age groups.
'Fitness' is used as a noun in the context of physical well-being or good health attained through exercise.
Regelmäßige Bewegung verbessert Ihre Fitness.
Regular exercise improves your fitness.
In this sentence, 'Fitness' is used as an attributive noun describing the industry that revolves around physical well-being and exercise services and products.