Ⅰ. journey “旅游” 着重指：从甲地到乙地所走的路程和花费的时间。多指陆路“旅游”用英语可解释为：a trip of some distance usually by land.
Ⅱ. travel “旅行、游历”多指到世界各地的活动，国与国之间旅行，(没有回到原出发地的含义)表某次具体的旅行时，常用复数。英译为：the activity of moving about the world.
① On his doctor’s advice, he went on his travels. 遵照医生的意见，他出发旅行了。
② He came home after years of foreign travel.
Ⅲ. trip 多指带有特殊目的或定期的旅行，为了高兴进行的较短距离的，旅游或远足。
① We’ll make a trip on Sunday.
② He came back from a trip. 他旅归来。
Ⅳ. tour “周游、旅游、观光、游览”等，多指不同地点的漫游或短途旅行参观。通常是回到原出发地点时就意味着旅行结束。英译：a journey during which several places of interest are visited; a short trip to or through a place on order to see it. 如：
① I’m going to set out on a walking tour. 我即将动身去徒步旅行。
② He has gone for a tour in Europe.
Ⅴ. voyage 多指较长距离的水上航行，但也指空中航行。
① He made a voyage from Shanghai to Qingdao. 他从上海航行到青岛。
② They made a voyage to France by air.他们乘飞机到法国。