brushup vs practice

brushup and practice both are nouns.

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

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

Other hypernyms of brushup include drill, exercise, practice session, recitation.

brushup (noun)	practice (noun)
practice intended to polish performance or refresh the memory	a customary way of operation or behavior
	systematic training by multiple repetitions
	the exercise of a profession
	translating an idea into action
	knowledge of how something is usually done

brushup (verb)	practice (verb)
	learn by repetition
	engage in a rehearsal (of)
	carry out or practice; as of jobs and professions
	avail oneself to
	engage in or perform