practice vs exercise

practice and exercise both are nouns.

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

As nouns, practice and exercise are synonyms defined as:

Other synonyms of practice include drill, practice session, recitation.

As nouns, exercise is a hypernym of practice; that is, exercise is a word with a broader meaning than practice:

Other hypernyms of practice include employment, usage, use, utilisation, utilization.

As verbs, practice and exercise are synonyms defined as:

Other synonyms of practice include drill, practise.

As verbs, practice and exercise are synonyms defined as:

practice and exercise: carry out or practice; as of jobs and professions

Other synonyms of practice include do, practise.

practice (noun)	exercise (noun)
a customary way of operation or behavior	the activity of exerting your muscles in various ways to keep fit
systematic training by multiple repetitions	a task performed or problem solved in order to develop skill or understanding
the exercise of a profession	systematic training by multiple repetitions
translating an idea into action	the act of using
knowledge of how something is usually done	an action, often used negatively and without consequences
	(usually plural) a ceremony that involves processions and speeches

practice (verb)	exercise (verb)
learn by repetition	do physical exercise
engage in a rehearsal (of)	give a workout to
carry out or practice; as of jobs and professions	learn by repetition
avail oneself to	put to use
engage in or perform	carry out or practice; as of jobs and professions