leapfrog [leapfrogged, leapfrogging, leapfrogs]+◼◼◼verb[UK: ˈliːp.frɒɡ] [US: ˈliːp.ˌfrɒɡ]
leap-frog+verb[UK: ˈliːp.frɒɡ] [US: ˈliːp.frɑːɡ]
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