fortieth

pron, det 40th; next after thirty-ninth 第40, 第四十（个）. n one of forty equal parts of sth 四十分之一.

formidably, formless, formlessly, formula, formulaic, formulate, formulation, fornicate, fornication, forsake, forsaken, forseeable, forswear, forsythia, fort, forte, forth, forthcoming, forthright, forthwith, fortification, fortified wine, fortify, fortissimo, fortitude, fortnight, fortnightly, FORTRAN (also Fortran), fortress, fortuitous, fortuity, fortunate, fortunately, fortune, fortune cookie, fortune-hunter, fortune-teller, forty, forty-five (also 45), forum,