An adventure is an exciting and probably risky trip, effort, or undertaking. Let's go explore the jungle! Don't be scared — it'll be an adventure!
To a kid from the city, a ride on the subway is just another trip across town. To a kid from the suburbs, though, it can be a real adventure — a trip to a strange place with all sorts of strange people, new sights, and surprising twists and turns. If you've ever been to the Great Adventure amusement park, you know that the whole place is designed to make you feel as though you're on a wild, exciting, and thrilling trip — a great adventure. People often go on an adventure hoping something wonderful will come of it.