Longman Dictionary of Contemporary English homepage

leapfrog

2 verb
     
leapfrog2 past tense and past participle leapfrogged, present participle leapfrogging [intransitive and transitive]
to suddenly become better, more advanced etc than people or organizations that were previously better than you:
The company leapfrogged its rivals into a leading position.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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