piv·ot

1: a shaft or pin on which something turns
2 a : a person, thing, or factor having a major or central role, function, or effect
b : a key player or position; specifically : an offensive position of a basketball player standing usually with back to the basket to relay passes, shoot, or provide a screen for teammates
3: the action of pivoting; especially : the action in basketball of stepping with one foot while keeping the other foot at its point of contact with the floor

“Pivot.” Merriam-Webster.com. Merriam-Webster, n.d. Web. 20 Aug. 2014. <http://www.merriam-webster.com/dictionary/pivot>.