The term 'Runs Out of Steam' is a metaphor for losing energy or enthusiasm. It can be used to describe a person who has become exhausted or a situation that has become stagnant. The crossword solutions for this term are 'TIRES' (5 letters) and 'Dies' (4 letters). Both words are used to describe the lack of energy or enthusiasm associated with the phrase. TIRES implies that the person or situation has become worn out, while dies implies that the person or situation has come to an end.