lead′-off`
adj. leading off or beginning.
Is leadoff one word or two?
an act that starts something; start; beginning.
What is a leadoff double?
A leadoff double occurs when the first batter, or leadoff batter, of the inning hits a double to start things off. By hitting a leadoff double, this greatly increases the chances of the team scoring in the inning. For example, the runner on second could most likely score on a base hit single.
