I. | ̷ ̷ ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷ adjective
: being one more than 76 in number
seventy-seven years
— see number table
II. pronoun, plural in construction
: 77 countable persons or things not specified but under consideration and being enumerated
seventy-seven are here
seventy-seven were found
III. noun
1. : seven and 70 : seven times 11
2.
a. : 77 units or objects
a total of seventy-seven
b. : a group or set of 77
3. : the numerable quantity symbolized by the arabic numerals 77
4. : the 77th in a set or series