1)
What is "Mispar ha'Chalom"?
1.
Rashi citing Targum Yonasan: It is the telling of the dream. Radak - this is like "va'Ysaper Lahem Es Chalomo" (Bereishis 41:8). It is an expression of telling.
2)
What is "Shivro"?
1.
Rashi: It is the interpretation. Radak - a dream is like a sealed matter. The interpretation breaks it and reveals it.