The term 'Pole Vault Unit' can be summarized by two crossword solutions: GROSZ (5 letters) and ZLOTY (5 letters). GROSZ is the currency of Poland, while ZLOTY is the currency of Poland. Both currencies are used in the country to purchase goods and services. The Pole Vault Unit is a unit of measurement used in pole vaulting, which is a track and field event in which an athlete uses a pole to vault over a bar. The unit measures the height of the bar that the athlete must clear.