These are all words for an act of travelling to a place.
tripan act of travelling from one place to another, and usually back again:
a business trip出差
a five-minute trip by taxi五分钟的出租车车程
journeyan act of travelling from one place to another, especially when they are a long way apart:
a long and difficult journey across the mountains漫长而艰难的翻山旅行
trip or journey?用 trip 还是 journey？A trip usually involves you going to a place and back again; a journey is usually one-way. A trip is often shorter than a journey, although it does not have to be: a trip to New York • a round-the-world trip. It is often short in time, even if it is long in distance. Journey is more often used when the travelling takes a long time and is difficult. In North American English journey is not used for short trips (British English)Don't use the car for short journeys.
toura journey made for pleasure during which several different places are visited:
a tour of Bavaria巴伐利亚之旅
expeditionan organized journey with a particular purpose, especially to find out about a place that is not well known:
the first expedition to the South Pole首次去南极的探险
excursiona short trip made for pleasure, especially one that has been organized for a group of people:
We went on an all-day excursion to the island.我们到岛上去游览了一整天。
outinga short trip made for pleasure or education, usually with a group of people and lasting no more than a day:
The children were on a day’s outing from school.孩子们正进行为期一天的校外短途旅行。
day outa trip to somewhere for a day, especially for pleasure: