To write the Greek Small Letter Omega With Oxia And Ypogegrammeni symbol ῴ on keyboard using ALT codes; ALT+8180, just hold down the ALT key while typing the alt key code 8180. You have to use the numeric keypad of your keyboard. If you don not have nu🐓meric ke🍒ypad, hold down the Fn and ALT keys while typing the alt code number.