Meaning & use
fitness
Last updated
Meanings
noununcountable
The state of having a healthy, strong body that can do physical activity well, usually built up through exercise.
Grammar: Uncountable: improve your fitness, not a fitness.
Patterns
- fitness level
- improve your fitness
Regular swimming has greatly improved her fitness.
The recruits must pass a test of physical fitness before training.
He lost his fitness during the winter break and had to start slowly.
noununcountableformal
The quality of being suitable or good enough for a particular purpose or role.
Grammar: Usually followed by for or to: fitness for the job, fitness to practice.
Patterns
- fitness for something
- fitness to do something
The committee questioned his fitness for public office.
Inspectors check a ship's fitness to sail before every voyage.
The court examined the doctor's fitness to practice.
noununcountablebiologytechnical
In biology, how well an organism's inherited traits help it survive and produce offspring in its environment.
Grammar: A technical biology sense: evolutionary fitness, not exercise.
Patterns
- the fitness of an organism
Longer legs gave the deer greater fitness in open grassland.
Biologists measure fitness by the number of surviving offspring.
A trait that lowers fitness tends to disappear over generations.
Common combinations
- physical fitness
- Physical fitness depends on exercise, sleep and a balanced diet.
- improve fitness
- Brisk walking is an easy way to improve fitness.
- fitness level
- Choose a class that matches your fitness level.
- cardiovascular fitness
- Cycling builds cardiovascular fitness quickly.
- fitness for purpose
- The tests prove the product's fitness for purpose.
- fitness tracker
- My fitness tracker counts my steps and heart rate.
Synonyms and how they differ
- health
- Health is the wider state of being free from illness, whereas fitness focuses on strength, stamina and the body's ability to perform.
- conditioning
- Conditioning is the training process that builds fitness, so it names the effort rather than the result.
- suitability
- Suitability replaces fitness in the second sense but is more general and less formal.
- stamina
- Stamina is just the ability to keep going for a long time, a single part of overall fitness.
Opposites
Word family
Commonly confused: fitness or fitment? fitness or wellness?
fitness vs fitment
A fitment is a fixed piece of equipment in a building, such as a light, not a state of health.
fitness vs wellness
Wellness covers overall physical and mental well-being, a broader idea than athletic fitness.
Practice
In evolutionary biology, an animal with high fitness is one that
Choose one answer.
Biological fitness is about reproductive success. Speed or size may help but do not define it, and animals do not use gyms.
Make it your own
Write a sentence using “fitness”, then check it and compare it with the examples above.