fitness

Word parts

fit + -ness

Pronunciation

• IPA ^(key): /ˈfɪtnəs/

• Audio (US)

  (file)

Noun

Singular fitness

Plural fitnesses

1. Fitness is the ability of an organism to survive and reproduce.

   In cold places, fur can increase evolutionary fitness.

2. Fitness is the condition of being physically healthy.

   You need to improve your fitness if you want to live for a long time.