"leapfrog" in the noun sense
advancing as if in the child's game, by leaping over obstacles or competitors
"the company still believes the chip is a leapfrog in integration and will pay huge dividends"
a game in which one child bends down and another leaps over
"leapfrog" in the verb sense
"He leapfrogged his classmates"
progress by large jumps instead of small increments
Source: WordNet® (An amazing lexical database of English)
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