Noun frog (plural: frogs) a small hopping amphibian a fastener for clothing consisting of a button that fits through a loop. the end of a violin bow that the violinist holds. Related terms bullfrog leapfrog frog and toad Translations Bulgarian: жаба f (1) Catalan: granota f French: grenouille f (1) German: Frosch m (1) Italian: rana f (1) Mongolian: мэлхий (melkhii) (1) Spanish: rana f (1) See also amphibian tadpole toad