fasten

v.(使)固定，系牢，绑紧，扣紧

fart, farther, farthest, farthing, fascia, fascinate, fascinating, fascinatingly, fascination, fascism, fascism (also Fascism), fascist, fascist (also Fascist), fashion, fashionable, fashionably, fast, fast food, fast time, fast-talk, fastener, fastidious, fastidiously, fastidiousness, fastness, fat, fat cat, fat-head, fatal, fatalism, fatalist, fatalistic, fatality, fatally, fate, fateful, fatefully, father, Father Christmas, Father Time,