'Leapfrog' definitions:

Definition of 'leapfrog'

(from WordNet)
noun
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"
noun
A game in which one child bends down and another leaps over
verb
Jump across; "He leapfrogged his classmates"
verb
Progress by large jumps instead of small increments

Definition of 'Leapfrog'

From: GCIDE
  • Leapfrog \Leap"frog`\, n. A play among boys, in which one stoops down and another leaps over him by placing his hands on the shoulders of the former. [1913 Webster]

Synonyms of 'leapfrog'

From: Moby Thesaurus