fitness
nounUK /ˈfɪtnəs/
US /ˈfɪtnəs/
Fitness means being strong and healthy so your body can run and play.
She does jumping jacks every morning to improve her fitness.
OTHER MEANINGS
2. The quality of being suitable or right for a particular purpose.
The fitness of the old bridge for heavy trucks was questioned.
3. The ability of an organism to survive and reproduce in its environment.
Camouflage improves a rabbit's fitness in the wild.
4. The state of being in good physical shape, especially as a result of exercise.
His fitness level improved after months of swimming.