(bodybuilding) A good-looking person (usually a man) with a well-developed physique who is paid as a model to demonstrate exercises or related equipment.

plural of fitness centre

(New Zealand) A certification that a motor vehicle is roadworthy, based on an annual or semiannual inspection. / (New Zealand, by extension) An assurance that something is in good working order.

plural of warrant of fitness

Alternative form of aquafitness

(evolutionary theory) the number of offspring equivalents an individual rears, rescues or otherwise supports through its behavior (regardless of who begets them).

A facility with exercise equipment and sometimes instructors.

(Australia) a health indicator age in comparison to a person's true age, based on a survey of diet, exercise, and other factors.

(informal, chiefly UK) Wholeheartedly

(simile) Very fit; in good shape.