Sentence:  He took a midnight train out of Cleveland Saturday , without an official word to anybody , and has stayed away from newsmen on his train <WSD>trip</WSD> across the nation to Reno , Nev. , where his wife , former Olympic Diving Champion Zoe Ann Olsen , awaited . 
Meaning of the word marked with <WSD> tags:  a journey for some purpose (usually including the return)