5516. Strong's Dictionary Study 5516. chi xi stigma {khee xee stig'-ma}; the 22d, 14th and an obsolete letter (4742 as a cross) of the Greek alphabet (intermediate between the 5th and 6th), used as numbers; denoting respectively 600, 60 and 6; 666 as a numeral: --six hundred threescore and six.[ql ~~~~~~