pick off

from Wiktionary, Creative Commons Attribution/Share-Alike License

• v. To remove by picking.
• v. To shoot one by one.
• v. To dispose of tasks, obstacles, opponents etc. one by one.
• v. To throw out a runner by tagging them whilst they are not in contact with any of the three bases or home plate.
• v. To intercept, such as a ball in flight.
• n. An instance of throwing out a batter leading off base.