1. the condition of being physically strong and healthy
2. the quality of being suitable or appropriate for a particular purpose
3. an organism’s ability to survive and reproduce in its environment
Usage: biology

Examples

• She goes to the gym regularly to maintain her fitness.
• The fitness program includes cardio and strength training.
• His fitness for the job was questioned by the committee.
• We need to evaluate the fitness of this solution for our needs.
• The fitness tracker monitors your daily activity levels.
• Natural selection favors traits that increase fitness.
• The fitness center offers various exercise classes.