The state or turn of being in; specifically, in cricket, baseball, etc., each period during which both teams get one turn each at bat; as, in baseball there are nine innings to a complete game; -- often in the pl.
A period of play. There are 9 innings in a regulation game, each team bats in an inning until they record 3 outs. The visiting team always bats in the top half (beginning) of an inning. If the home team has a higher total after their opponents bat in the top half of the last schedule inning, the bottom half of the inning is not played and the score is final. A tie at the end of regulation play forces extra innings. The game continues until an inning is complete and the visitors have a higher score, or until the home team breaks the tie (then) they don't complete the 3 outs.