short trip; excursion; brief journey
A short trip or excursion, often for leisure or a brief getaway. Can be used for day trips or overnight stays.
I plan to go on a short trip this weekend.
She went on an excursion to Hakone with her friends.
Compound of 小 (small, short) and 旅行 (travel, trip). The exact historical derivation is uncertain, but the word transparently means 'small trip'.