[Sửa]Forty-first,-second , etc. the ordinal numbers between fortieth andfiftieth. forty-five a gramophone record played at 45 r.p.m.the Forty-five the Jacobite rebellion of 1745. forty-niner US aseeker for gold etc., esp. in the Californian gold-rush of 1849.forty-one, -two , etc. the cardinal numbers between forty andfifty. forty winks colloq. a short sleep.