Skip to definition.  Noun: exercising  'ek-su(r),sI-zing   1.
The activity of exerting your muscles in various ways to keep
fit     "he did some exercising";     - exercise, physical
exercise, physical exertion, workout Verb: exercise  'ek-
su(r),sIz   1. Put to use     "exercise one's power or
influence";     - exert   2. Carry out, engage in (as of jobs
and professions)     "exercise law";     - practice [N. Amer],
practise [Brit, Cdn], do   3. Give a workout to     "Some
parents exercise their infants"; "this puzzle will exercise your
mind";     - work, work out   4. Do physical exercise     "She
exercises in the gym every day";     - work out   5. Learn by
repetition     - drill, practice [N. Amer], practise [Brit, Cdn]
Type of: apply, effort, elbow grease, employ, exertion, learn,
put to work, read, study, sweat, take, travail, use,
utilise [Brit], utilize, work  Encyclopedia: Exercising