exercise vs work

exercise and work both are nouns.

Word	Noun	Adjective	Verb	Adverb
exercise	Yes	No	Yes	No
work	Yes	No	Yes	No

As verbs, exercise and work are synonyms defined as:

Other synonyms of exercise include work out.

As verbs, work is a hypernym of exercise; that is, work is a word with a broader meaning than exercise:

Other hypernyms of exercise include put to work.

exercise (noun)	work (noun)
the activity of exerting your muscles in various ways to keep fit	activity directed toward making or doing something
a task performed or problem solved in order to develop skill or understanding	the occupation for which you are paid
systematic training by multiple repetitions	a product produced or accomplished through the effort or activity or agency of a person or thing
the act of using	a place where work is done
an action, often used negatively and without consequences	the total output of a writer or artist (or a substantial part of it)
(usually plural) a ceremony that involves processions and speeches	applying the mind to learning and understanding a subject (especially by reading)
	(physics) a manifestation of energy; the transfer of energy from one physical system to another expressed as the product of a force and the distance through which it moves a body in the direction of that force

exercise (verb)	work (verb)
do physical exercise	give a workout to
give a workout to	arrive at a certain condition through repeated motion
learn by repetition	go sour or spoil
put to use	cause to undergo fermentation
carry out or practice; as of jobs and professions	find the solution to (a problem or question) or understand the meaning of
	use or manipulate to one's advantage
	to mix into a homogeneous mass
	perform as expected when applied
	move into or onto
	shape, form, or improve a material
	cause to happen or to occur as a consequence
	prepare for crops
	make something, usually for a specific function
	gratify and charm, usually in order to influence
	proceed along a path
	move in an agitated manner
	provoke or excite
	be employed
	cause to work
	exert oneself by doing mental or physical work for a purpose or out of necessity; work
	have an effect or outcome; often the one desired or expected
	operate in a certain place, area, or specialty
	proceed towards a goal or along a path or through an activity
	have and exert influence or effect
	operate in or through
	cause to operate or function
	behave in a certain way when handled