frogman

n (pl -men / -mEn; -mEn/) swimmer with a rubber suit, flippers and an oxygen supply that enables him to work underwater for periods of time 蛙人.

frippery, Frisbee, frisk, friskily, frisky, frisson, fritter, frivolity, frivolous, frivolously, frizz, frizzle, frizzy, fro, frock, frock coat, frock-coat, frog, frog-march, frog-spawn, frolic, frolicsome, from, from memory, from now on, from side to side, from then on, from time to time, from...to, frond, front, front man, front runner, front-page, frontage, frontal, frontier, frontiersman, frontispiece, frost,