eighty-eighth I. \| ̷ ̷ ̷ ̷| ̷ ̷\adjective 1.: being number 88 in a countable series < the eighty-eighth day > — see number table 2.: being one of 88 equal parts into which something is divisible < an eighty-eight share of the money > II. noun 1.: number 88 in a countable series 2.: the quotient of a unit divided by 88 : one of 88 equal parts of something < one eighty-eighth of the total >