SOJOURN can be broken down into short-journey and this would help us to learn the word. Now since you are making a short journey so you will be staying somewhere temporarily as a part of that journey, this is what sojourn means. A temporary stay in a place away from your home.
Meaning of Sojourn:
1. a temporary stay
Sentence Examples for Sojourn:
1. His sojourn in Paris was filled with great experiences and he returned refreshed and full of new ideas.