activities people do in order to practise► practice things you do regularly in order to get better at something, or an occasion when you do these things: · You're getting better - you just need a little more practice.· I try and get some practice in before classes.· There are only three more practices before the concert.piano/football/choir etc practice: · I scored two goals at hockey practice tonight.· Are you going to choir practice?
► training time that you spend practising and doing exercise in order to get better at a sport: · The team captain got a knee injury during training.a training course/session/programme etc: · Training sessions are on Saturdays at 10 a.m.
► rehearsal an occasion when all the people in a play, concert etc practise it in order to prepare for it to be performed for the public: · Changes to the script are often made during rehearsal.rehearsal of: · We're having our first rehearsal of 'Hamlet' tonight.dress rehearsal (=when everyone wears the clothes they will be wearing in the actual play): · Wednesday's dress rehearsal went fairly smoothly.
► run-through when you practise a play, speech, piece of music etc by reading or playing it from start to finish: · Let's have one more run-through and then finish for today.· The cast could all have done with an extra run-through of some of the songs.
► dry run an event in which you practise something by doing it from start to finish, especially in order to make sure that it will work or happen successfully: · One of the pilots made an error during the dry run of the mission.· The recording was intended to be a dry run, but Warfield sang the song flawlessly.
► exercise an activity that is designed to make you practise a particular skill within a larger subject or area of activity: · The exercises in Chapter 3 are helpful for students learning the future tense.· a book of guitar exercises to improve finger flexibility
a short practice before a performance, test etc: 
a final run-through of the play