trip, tour, travel, journey
trip= short distance + for pleasure
tour= short distance + for work - pleasure
travel= go from place to place ( long distance )
journey = go from place to place ( far distance )
Trip:
a journey to a place and back again, especially a short one for pleasure or a particular purpose
example :
Did you have a good trip?
We went on a trip to the mountains.
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Tour :
a journey made for pleasure during which several different towns, countries, etc. are visited:
a walking / sightseeing, etc. tour
Example :
a coach tour of northern France
a tour operator (= a person or company that organizes tours)
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Travel
to go from one place to another, especially over a long distance
examples :
to travel around the world
I go to bed early if I’m travelling the next day.
I love travelling by train.
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Journey :
examples :
an act of travelling from one place to another, especially when they are far apart:
They went on a long train journey across India.
Source : Oxford Advanced Learner's dictionary