The best meaning for the word "JOURNEY" in this sentence is a "trip from one place to another."
The best meaning for the word "JOURNEY" in this context is "trip from one place to another." To determine this, you can consider the context provided in the sentence: "The explorer planned a JOURNEY across Alaska." Here, it is evident that the word "JOURNEY" refers to a planned trip or voyage across a specific location, which aligns with the option "trip from one place to another."
