A rousing cheer is a loud and enthusiastic expression of joy or approval. It is often used to show support for a team, individual, or cause. The two crossword solutions for the term 'rousing cheer' are 'OLE' (3 letters) and 'HIPHIPHOORAY' (12 letters). 'OLE' is a Spanish interjection that is used to express approval or encouragement. 'HIPHIPHOORAY' is an exclamation of joy or celebration. Both terms are commonly used to express enthusiasm and support.