The phrase "fifteenth time" means it is the 15th occurrence or attempt of something.
Sentences with «fifteenth time»
It's funny cuz I'm on this site rn cuz today, for the about fifteenth time our Titus was locked up fighting with our Levi. (animalwised.com)
The two clubs are the most successful in FA Cup history, with eleven wins each, and will continue their rivalry on Monday, as they face off against each other for the fifteenth time in the competition, with the Gunners having won five of those previous meetings, while United have claimed seven victories. (caughtoffside.com)
Not only did the league have arguably the best budding rivalry in football with the Seahawks hosting the 49ers, but also one of the best individual rivalries in sports with Tom Brady and Peyton Manning meeting for the fifteenth time in their illustrious careers (including three postseason games). (sportsinsights.com)