One of four playing cards in a deck with nine pips on the face(noun)
WordNet. Princeton University. 2010.
Use "nine-spot" in a sentence
"Our 10-2 homecoming loss on April 16th had fans emptying out before the seventh-inning stretch after the Tribe put up a nine-spot in the top of the frame."
"End 8, 4:10: The Nationals sent 13 batters to the plate and put up a nine-spot in the eighth to take a 14-8 lead, with Bryce Harper capping the scoring with a two-run double into the right field corner."
"They both took two cards, and I stood pat with a nine-spot high."