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graduation – n. a ceremony at which degrees or diplomas are given out
trick-or-treat – n. a custom on Halloween in which children knock on people's doors and say "trick or treat" when the doors are opened to ask for candy
ticket -- v. to give or sell a ticket to (someone). A ticket is a piece of paper that allows you to see a show, participate in an event, travel on a vehicle, etc.
nostalgia – n. pleasure and sadness that is caused by remembering something from the past and wishing that you could experience it again
screen -- n. a large, flat, white surface on which images or movies are shown
