500 noun2 •An American trick-taking card game derived from euchre. •Synonym of jackpot (“a ball game in which a thrower calls out a point value and whether the ball must be caught "alive" (in the air) or "dead" (having touched the ground), and a group of catchers compete to catch the ball”).
.500 noun1 •An equal number of wins and losses.The Chicago Cubs finished ten games over .500, but still didn't make the playoffs.