action /ˈækʃn/
(noun) the process of doing something in order to make something happen or to deal with a situation
Example: She started her acting career while still at school.

approach /əˈprəʊtʃ/
(noun) a way of dealing with somebody/something; a way of doing or thinking about something such as a problem or a task
Example: The performance approaches perfection

audience /ˈɔːdiəns/
(noun) the group of people who have gathered to watch or listen to something (a play, concert, somebody speaking, etc.)
Example: The audience cheered the actors as they walked off the stage

creative /kriˈeɪtɪv/
(adjective) involving the use of skill and the imagination to produce something new or a work of art
Example: The writer's creative representation of the Seven Deadly Sins was astounding

dialogue /ˈdaɪəlɔːɡ/
(noun) a conversation in a book, play or film or in language teaching materials
Example: The actors performed the dialogue without using scripts

element /ˈelɪmənt/
(noun) a necessary or typical part of something; one of several parts that something contains
Example: The audience is an essential element of live theater

experience /ɪkˈspɪriəns/
(noun) the knowledge and skill that you have gained through doing something for a period of time; the process of gaining this
Example: The experience of live theater is very thrilling

occur /əˈkɜːr/
(verb) to happen
Example: The murder in the play occurs in the second act

perform /pərˈfɔːrm/
(verb) to entertain an audience by playing a piece of music, acting in a play, etc.
Example: The theater group performed a three-act play

rehearse /rɪˈhɜːrs/
(verb) to practise or make people practise a play, piece of music, etc. in preparation for a public performance
Example: Today, we'll just be rehearsing the final scene.

review /rɪˈvjuː/
(noun) a report in a newspaper or magazine, or on the internet, television or radio, in which somebody gives their opinion of a book, play, film, product, etc.; the act of writing this kind of report
Example: The terms of the contract are under review.

sell out
sell out /sel aʊt/
(phrasal verb) to be all sold
Example: The tickets sold out within hours.