practise vs do

practise is not a noun while do is a noun.

Word	Noun	Adjective	Verb	Adverb
practise	No	No	Yes	No
do	Yes	No	Yes	No

As verbs, do is a hypernym of practise; that is, do is a word with a broader meaning than practise:

Other hypernyms of practise include execute, perform.

As verbs, practise and do are synonyms defined as:

Other synonyms of practise include exercise, practice.

practise (noun)	do (noun)
	an uproarious party
	the syllable naming the first (tonic) note of any major scale in solmization

practise (verb)	do (verb)
learn by repetition	arrange attractively
engage in a rehearsal (of)	behave in a certain manner; show a certain behavior; conduct or comport oneself
carry out or practice; as of jobs and professions	create or design, often in a certain way
	carry out or perform an action
	give rise to; cause to happen or occur, not always intentionally
	travel or traverse (a distance)
	engage in
	carry out or practice; as of jobs and professions
	carry on or function
	get (something) done
	proceed or get along
	be sufficient; be adequate, either in quality or quantity
	spend time in prison or in a labor camp