Difference between Record-breaking and Best

Record-breaking

Part of speech: adjective

Definition: Of an achievement, exceeding the highest previously recorded level in that activity.

Best

Part of speech: adjective

Definition: Most; largest.

Part of speech: adverb

Definition: (manner) Accurately, competently, satisfactorily.

Part of speech: verb

Definition: To beat in a contest.

Part of speech: noun

Definition: The supreme effort one can makeThe person (or persons) who is (are) most excellent.

Example sentence: I am as bad as the worst, but, thank God, I am as good as the best.