"leapfrogs" in the noun sense
1. leapfrog
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"
2. leapfrog
a game in which one child bends down and another leaps over
"leapfrogs" in the verb sense
1. leapfrog
jump across
"He leapfrogged his classmates"
2. leapfrog
progress by large jumps instead of small increments
Source: WordNet® (An amazing lexical database of English)
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