[1] : WordNet (r) 2.0

workout
     n : the activity of exerting your muscles in various ways to
         keep fit; "the doctor recommended regular exercise"; "he
         did some exercising"; "the physical exertion required by
         his work kept him fit" syn: exercise, exercising, physical
         exercise, physical exertion
see also:
exercise exercising physical exercise physical exertion 

[2] : Moby Thesaurus II by Grady Ward, 1.0

32 moby thesaurus words for "workout":
   athletics, audition, bench test, breather, calisthenics,
   constitutional, daily dozen, drill, dry run, exercise, exercising,
   flight test, gymnastic exercises, gymnastics, hearing, isometrics,
   physical education, physical jerks, pilot plan, practical test,
   practice, rehearsal, road test, setting-up exercises, shakedown,
   shakedown cruise, stretch, test flight, test run, trial run,
   tryout, yoga

Workout >> W Words
Workout, definition of term: Workout
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