fern

n. 羊齿植物，蕨

felucca, fem, female, feminine, femininity, feminism, feminist, femme fatale, femoral, femur, fen, fence, fencer, fencing, fend, fender, fennel, feral, ferment, fermentation, ferny, ferocious, ferociously, ferocity, ferret, Ferris wheel, ferroconcrete, ferrous, ferrule, ferry, ferry-boat, ferryboat, ferryman, fertile, fertility, fertilization, fertilisation, fertilize, fertilize, fertilise, fertilizer, fertilizer, fertiliser,