An excursion is a short trip taken for pleasure, learning, or exploration, usually with a planned return. When your class takes an excursion to a science museum, you're making a special journey away from school with the intention of coming back the same day. Families might take an excursion to a nearby lake for an afternoon of hiking, or a summer camp might organize an excursion to a historical site.

The word emphasizes that you're stepping outside your normal routine for a specific purpose. An excursion is an intentional visit somewhere interesting or educational, with a clear destination and goal in mind. A weekend visit to grandparents might include an excursion to a local farm or nature preserve.

When you go on an excursion, you're temporarily leaving your everyday environment to experience something different, knowing you'll return home when it's over.