Translation guide
The English word 'fitness' can refer to physical health and condition, suitability for a purpose, or biological adaptation. This guide helps learners choose the right Japanese expression for each meaning.
Referring to the state of being physically healthy and strong, often as a result of exercise.
General term for health, often used in contexts like 'health and fitness'.
健康のために運動しています。
I exercise for my health.
Physical strength or stamina; often used when talking about fitness levels or tests.
体力をつけるために走っています。
I run to build up my physical fitness.
Loanword from English, commonly used in contexts like 'fitness club' or 'fitness industry'.
最近フィットネスに通い始めました。
I recently started going to a fitness club.
Physical condition, often used for daily condition rather than long-term fitness.
体調を整えるために睡眠をしっかりとっています。
I make sure to get enough sleep to maintain my physical condition.
Referring to the quality of being suitable or appropriate for a particular role, task, or situation.
Aptitude or suitability, often used in job contexts.
彼はその仕事に適性がある。
He has the fitness for the job.
Compatibility or conformity; more formal and often used in technical or legal contexts.
Appropriateness; a more general term for suitability.
その発言の適切さに疑問がある。
I question the fitness of that remark.
Referring to the ability of an organism to survive and reproduce in its environment.
The standard term in evolutionary biology for fitness.
自然選択は適応度の高い個体を選びます。
Natural selection favors individuals with high fitness.
Also used in academic contexts, often as a loanword.
Evaluate the fitness of this product for the market.
This gene increases fitness.