Select the option which is the most appropriate one word substitution for the given group of words.

A detailed plan for a journey especially a list of places to visit

itinerary

The most appropriate one-word substitution for the given group of words "a detailed plan for a journey especially a list of places to visit" is itinerary.

• Directory is a list of names and addresses.
• Trajectory is the path of a moving object.
• Inventory is a list of items in a collection.
• Itinerary is a detailed plan for a journey, especially a list of places to visit.

The word itinerary is the most appropriate because it specifically refers to a plan for a journey, including the places that will be visited and the dates and times of arrival and departure. The other words do not have the same connotation of being a plan for a journey.