Definitions from Wiktionary (exercise)

▸ noun:  (countable) Any activity designed to develop or hone a skill or ability.
▸ noun:  (countable, uncountable) Activity intended to improve physical, or sometimes mental, strength and fitness.
▸ noun:  A setting in action or practicing; employment in the proper mode of activity; exertion; application; use.
▸ noun:  The performance of an office, ceremony, or duty.
▸ noun:  (obsolete) That which gives practice; a trial; a test.
▸ verb:  To exert for the sake of training or improvement; to practice in order to develop.
▸ verb:  (intransitive) To perform physical activity for health or training.
▸ verb:  (transitive) To use (a right, an option, etc.); to put into practice.
▸ verb:  (now often in passive) To occupy the attention and effort of; to task; to tax, especially in a painful or vexatious manner; harass; to vex; to worry or make anxious.
▸ verb:  (obsolete) To set in action; to cause to act, move, or make exertion; to give employment to.

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