同どう乗じょう者しゃどうじょうしゃMeanings1nounfellow passengerRefers to a person riding in the same vehicle (car, train, plane, etc.) as the speaker or another reference person.同どう乗じょう者しゃにシートベルトの着ちゃく用ようをお願ねがいします。Please ask your fellow passengers to fasten their seat belts.