If only 4 groups inside of a 5-crew parlay cover, for example, It might be deemed a reduction, just similar to if only one of several 5 protected. parlays; parlayed; parlaying Britannica Dictionary definition of PARLAY [+ item] US : to make use of or create (something) to acquire something https://archercpzmb.canariblogs.com/the-definitive-guide-to-parlay-38872590