a) where actors put on their costumes and make-up - dressing room;b) the area on which the performance takes place - stage;c) a line of seats - row;d) a way down from back to front between seats - aisle;e) an area of downstairs seats - stalls;f) an area of upstairs seats - circle;g) the theatre entrance hall where people meet before going in - foyer;h) the place where you go or phone to buy tickets - box office;i) the whole area out of sight of thw audience - backstage;j) a little private balcony with 3-5 seats only - box.