Definition of personal best noun from the Oxford Advanced Learner's Dictionary


personal best

BrE BrE//ˌpɜːsənl ˈbest//
; NAmE NAmE//ˌpɜːrsənl ˈbest//
(abbreviation PB)
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the best result that you have ever had in an event such as a race or other competition She won the race with a personal best of 2 minutes 22.
See the Oxford Advanced American Dictionary entry: personal best