The term 'USE A SPRINGBOARD' can be solved by the crossword solution 'VAULT, ' which is a five-letter word. A VAULT is an architectural term for an arched form used to provide a space with a ceiling or roof. Vaults are often used in the construction of buildings, such as churches and other public buildings, to create a strong and secure structure. In gymnastics, a springboard is a device used to help athletes gain height and momentum when performing jumps and flips. Therefore, the term 'USE A SPRINGBOARD' can be interpreted as using a VAULT to gain height and momentum.