The eleventh letter in the Hebrew Alphabet. It is written כ in the beginning or middle of words and ך at the end of words. With a dagesh it sounds like letter K in the word ‘kin’ and without a dagesh it sounds like the ‘CH’ in the German name Bach. Its numeric value is 20. The letter Kaf is also a prefix meaning ‘as’ or ‘like’: Ice – קרח | cold as ice – קר כקרח.