I. | ̷ ̷ ̷ ̷| ̷ ̷ adjective
: being one more than 88 in number
eighty-nine years
— see number table
II. pronoun, plural in construction
: 89 countable persons or things not specified but under consideration and being enumerated
eighty-nine are here
eighty-nine were found
III. noun
1. : nine and 80
2.
a. : 89 units or objects
a total of eighty-nine
b. : a group or set of 89
3. : the numerable quantity symbolized by the arabic numerals 89
4. : the 89th in a set or series