exercise vs tone

exercise and tone both are nouns.

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

As verbs, tone is a hyponym of exercise; that is, tone is a word with a more specific, narrower meaning than exercise:

Other hyponyms of exercise include limber up, loosen up, warm up, train, tumble, strengthen, tone up, press, weight-lift, weightlift.

exercise (noun)	tone (noun)
the activity of exerting your muscles in various ways to keep fit	a quality of a given color that differs slightly from another color
a task performed or problem solved in order to develop skill or understanding	(music) the distinctive property of a complex sound (a voice or noise or musical sound)
systematic training by multiple repetitions	(linguistics) a pitch or change in pitch of the voice that serves to distinguish words in tonal languages
the act of using	the quality of something (an act or a piece of writing) that reveals the attitudes and presuppositions of the author
an action, often used negatively and without consequences	a steady sound without overtones
(usually plural) a ceremony that involves processions and speeches	a musical interval of two semitones
	the quality of a person's voice
	a notation representing the pitch and duration of a musical sound
	the general atmosphere of a place or situation and the effect that it has on people
	the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli

exercise (verb)	tone (verb)
do physical exercise	give a healthy elasticity to
give a workout to	change to a color image
learn by repetition	change the color or tone of
put to use	utter monotonously and repetitively and rhythmically
carry out or practice; as of jobs and professions	vary the pitch of one's speech