Practice is the act of rehearsing a behavior repeatedly, to help learn and eventually master a skill. The word derives from the Greek "πρακτική" (praktike), feminine of "πρακτικός" (praktikos), "fit for or concerned with action, practical",[1] and that from the verb "πράσσω" (prasso), "to achieve, bring about, effect, accomplish".[2]
In British English, practice is the noun and practise is the verb, but in American English it is now common for practice to be used both as a noun and a verb (see American and British English spelling differences; this article follows American conventions).
Sessions scheduled for the purpose of rehearsing and performance improvement are called practices. They are engaged in by sports teams, bands, individuals, etc., as in, "He went to football practice every day after school".