(transitive) To jump over some obstacle as in leapfrog.
(transitive) To overtakeThis new product will leapfrog the competition.
2011, January 12, Saj Chowdhury, Liverpool 2 - 1 Liverpool, Blackpool thus achieved their first double over Liverpool since the 1946-47 season but more significantly they leapfrogged their opponents in the table with a game in hand.
(transitive, military) To advance by engaging enemy with one unit while the other moves further forward.