Ninth/naɪnθ/ Definition 1 of 4Pro Tip 1/3Ordinal Understanding Remember 'ninth' indicates order, not quantity. It signifies position in a sequence. She stood ninth in line. Pro Tip 2/3Counting Occurrences 'Ninth' often counts repetitive events or series, like dates, grades, or parts of games. I'll visit on the ninth time. Pro Tip 3/3Sporting Context In baseball, 'ninth inning' is common, referring to the last regular part of a game. The team took the lead in the ninth inning.