Hitchhikers' hopes refer to the expectations of people who hitchhike, which is a form of transportation in which a person stands by the side of the road and tries to get a ride from passing vehicles. The two crossword solutions for this term are 'lifts' and 'rides', both of which have five letters. 'Lifts' refers to the act of being picked up by a vehicle, while 'rides' refers to the journey itself. Therefore, hitchhikers' hopes can be summarized as the expectation of being picked up and taken on a journey by a passing vehicle.