fifty-ninth I. \| ̷ ̷ ̷ ̷| ̷ ̷\adjective 1.: being number 59 in a countable series < the fifty-ninth day > — see number table 2.: being one of 59 equal parts into which something is divisible < a fifty-ninth share of the money > II. noun 1.: number 59 in a countable series 2.: the quotient of a unit divided by 59 : one of 59 equal parts of something < one fifty-ninth of the total >