The condition of being physically healthy and strong, often as a result of exercise and proper nutrition. noun
Regular exercise can improve your overall fitness.
She achieved a high level of fitness before running the marathon.
The suitability or appropriateness of a person or thing for a particular purpose or situation. noun
The candidate's fitness for the role was evident from her experience and skills.
Assessing the fitness of the equipment is essential before starting the project.
The degree to which a living organism or a species is able to survive and reproduce in its environment; biological adaptability. noun
The fitness of the species determines its chances of survival in changing environments.
Natural selection favors individuals with higher fitness.