General:
* Trip: A short journey, often for pleasure or business.
* Voyage: A long journey, especially by sea or air.
* Expedition: A journey with a specific purpose, often involving exploration or research.
* Sojourn: A temporary stay in a place.
* Passage: A journey from one point to another, especially by sea or air.
* Travel: The act of moving from one place to another, often for pleasure or business.
* Trek: A long and difficult journey, often on foot.
* Excursion: A short trip, often for pleasure or education.
* Tour: A journey with a specific itinerary, often guided.
* Odyssey: A long and adventurous journey.
Figurative:
* Path: A course or direction of life.
* Quest: A search for something specific.
* Adventure: A journey with excitement and risk.
* Pilgrimage: A journey to a sacred place.
* Migration: A seasonal movement of animals or people.
* Evolution: A gradual process of change.
Formal:
* Transit: The act of moving from one place to another.
* Passage: A journey from one point to another, especially by sea or air.
* Traverse: To travel across a place.
* Cruising: Sailing or flying without a fixed destination.
The best word to use will depend on the specific context of your writing.